').append($compileNodes).html())\n );\n } else if (cloneConnectFn) {\n // important!!: we must call our jqLite.clone() since the jQuery one is trying to be smart\n // and sometimes changes the structure of the DOM.\n $linkNode = JQLitePrototype.clone.call($compileNodes);\n } else {\n $linkNode = $compileNodes;\n }\n\n if (transcludeControllers) {\n for (var controllerName in transcludeControllers) {\n $linkNode.data('$' + controllerName + 'Controller', transcludeControllers[controllerName].instance);\n }\n }\n\n compile.$$addScopeInfo($linkNode, scope);\n\n if (cloneConnectFn) cloneConnectFn($linkNode, scope);\n if (compositeLinkFn) compositeLinkFn(scope, $linkNode, $linkNode, parentBoundTranscludeFn);\n return $linkNode;\n };\n }\n\n function detectNamespaceForChildElements(parentElement) {\n // TODO: Make this detect MathML as well...\n var node = parentElement && parentElement[0];\n if (!node) {\n return 'html';\n } else {\n return nodeName_(node) !== 'foreignobject' && node.toString().match(/SVG/) ? 'svg' : 'html';\n }\n }\n\n /**\n * Compile function matches each node in nodeList against the directives. Once all directives\n * for a particular node are collected their compile functions are executed. The compile\n * functions return values - the linking functions - are combined into a composite linking\n * function, which is the a linking function for the node.\n *\n * @param {NodeList} nodeList an array of nodes or NodeList to compile\n * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n * scope argument is auto-generated to the new child of the transcluded parent scope.\n * @param {DOMElement=} $rootElement If the nodeList is the root of the compilation tree then\n * the rootElement must be set the jqLite collection of the compile root. This is\n * needed so that the jqLite collection items can be replaced with widgets.\n * @param {number=} maxPriority Max directive priority.\n * @returns {Function} A composite linking function of all of the matched directives or null.\n */\n function compileNodes(nodeList, transcludeFn, $rootElement, maxPriority, ignoreDirective,\n previousCompileContext) {\n var linkFns = [],\n attrs, directives, nodeLinkFn, childNodes, childLinkFn, linkFnFound, nodeLinkFnFound;\n\n for (var i = 0; i < nodeList.length; i++) {\n attrs = new Attributes();\n\n // we must always refer to nodeList[i] since the nodes can be replaced underneath us.\n directives = collectDirectives(nodeList[i], [], attrs, i === 0 ? maxPriority : undefined,\n ignoreDirective);\n\n nodeLinkFn = (directives.length)\n ? applyDirectivesToNode(directives, nodeList[i], attrs, transcludeFn, $rootElement,\n null, [], [], previousCompileContext)\n : null;\n\n if (nodeLinkFn && nodeLinkFn.scope) {\n compile.$$addScopeClass(attrs.$$element);\n }\n\n childLinkFn = (nodeLinkFn && nodeLinkFn.terminal ||\n !(childNodes = nodeList[i].childNodes) ||\n !childNodes.length)\n ? null\n : compileNodes(childNodes,\n nodeLinkFn ? (\n (nodeLinkFn.transcludeOnThisElement || !nodeLinkFn.templateOnThisElement)\n && nodeLinkFn.transclude) : transcludeFn);\n\n if (nodeLinkFn || childLinkFn) {\n linkFns.push(i, nodeLinkFn, childLinkFn);\n linkFnFound = true;\n nodeLinkFnFound = nodeLinkFnFound || nodeLinkFn;\n }\n\n //use the previous context only for the first element in the virtual group\n previousCompileContext = null;\n }\n\n // return a linking function if we have found anything, null otherwise\n return linkFnFound ? compositeLinkFn : null;\n\n function compositeLinkFn(scope, nodeList, $rootElement, parentBoundTranscludeFn) {\n var nodeLinkFn, childLinkFn, node, childScope, i, ii, idx, childBoundTranscludeFn;\n var stableNodeList;\n\n\n if (nodeLinkFnFound) {\n // copy nodeList so that if a nodeLinkFn removes or adds an element at this DOM level our\n // offsets don't get screwed up\n var nodeListLength = nodeList.length;\n stableNodeList = new Array(nodeListLength);\n\n // create a sparse array by only copying the elements which have a linkFn\n for (i = 0; i < linkFns.length; i+=3) {\n idx = linkFns[i];\n stableNodeList[idx] = nodeList[idx];\n }\n } else {\n stableNodeList = nodeList;\n }\n\n for (i = 0, ii = linkFns.length; i < ii;) {\n node = stableNodeList[linkFns[i++]];\n nodeLinkFn = linkFns[i++];\n childLinkFn = linkFns[i++];\n\n if (nodeLinkFn) {\n if (nodeLinkFn.scope) {\n childScope = scope.$new();\n compile.$$addScopeInfo(jqLite(node), childScope);\n } else {\n childScope = scope;\n }\n\n if (nodeLinkFn.transcludeOnThisElement) {\n childBoundTranscludeFn = createBoundTranscludeFn(\n scope, nodeLinkFn.transclude, parentBoundTranscludeFn,\n nodeLinkFn.elementTranscludeOnThisElement);\n\n } else if (!nodeLinkFn.templateOnThisElement && parentBoundTranscludeFn) {\n childBoundTranscludeFn = parentBoundTranscludeFn;\n\n } else if (!parentBoundTranscludeFn && transcludeFn) {\n childBoundTranscludeFn = createBoundTranscludeFn(scope, transcludeFn);\n\n } else {\n childBoundTranscludeFn = null;\n }\n\n nodeLinkFn(childLinkFn, childScope, node, $rootElement, childBoundTranscludeFn);\n\n } else if (childLinkFn) {\n childLinkFn(scope, node.childNodes, undefined, parentBoundTranscludeFn);\n }\n }\n }\n }\n\n function createBoundTranscludeFn(scope, transcludeFn, previousBoundTranscludeFn, elementTransclusion) {\n\n var boundTranscludeFn = function(transcludedScope, cloneFn, controllers, futureParentElement, containingScope) {\n\n if (!transcludedScope) {\n transcludedScope = scope.$new(false, containingScope);\n transcludedScope.$$transcluded = true;\n }\n\n return transcludeFn(transcludedScope, cloneFn, {\n parentBoundTranscludeFn: previousBoundTranscludeFn,\n transcludeControllers: controllers,\n futureParentElement: futureParentElement\n });\n };\n\n return boundTranscludeFn;\n }\n\n /**\n * Looks for directives on the given node and adds them to the directive collection which is\n * sorted.\n *\n * @param node Node to search.\n * @param directives An array to which the directives are added to. This array is sorted before\n * the function returns.\n * @param attrs The shared attrs object which is used to populate the normalized attributes.\n * @param {number=} maxPriority Max directive priority.\n */\n function collectDirectives(node, directives, attrs, maxPriority, ignoreDirective) {\n var nodeType = node.nodeType,\n attrsMap = attrs.$attr,\n match,\n className;\n\n switch (nodeType) {\n case NODE_TYPE_ELEMENT: /* Element */\n // use the node name:
\n addDirective(directives,\n directiveNormalize(nodeName_(node)), 'E', maxPriority, ignoreDirective);\n\n // iterate over the attributes\n for (var attr, name, nName, ngAttrName, value, isNgAttr, nAttrs = node.attributes,\n j = 0, jj = nAttrs && nAttrs.length; j < jj; j++) {\n var attrStartName = false;\n var attrEndName = false;\n\n attr = nAttrs[j];\n name = attr.name;\n value = trim(attr.value);\n\n // support ngAttr attribute binding\n ngAttrName = directiveNormalize(name);\n if (isNgAttr = NG_ATTR_BINDING.test(ngAttrName)) {\n name = name.replace(PREFIX_REGEXP, '')\n .substr(8).replace(/_(.)/g, function(match, letter) {\n return letter.toUpperCase();\n });\n }\n\n var directiveNName = ngAttrName.replace(/(Start|End)$/, '');\n if (directiveIsMultiElement(directiveNName)) {\n if (ngAttrName === directiveNName + 'Start') {\n attrStartName = name;\n attrEndName = name.substr(0, name.length - 5) + 'end';\n name = name.substr(0, name.length - 6);\n }\n }\n\n nName = directiveNormalize(name.toLowerCase());\n attrsMap[nName] = name;\n if (isNgAttr || !attrs.hasOwnProperty(nName)) {\n attrs[nName] = value;\n if (getBooleanAttrName(node, nName)) {\n attrs[nName] = true; // presence means true\n }\n }\n addAttrInterpolateDirective(node, directives, value, nName, isNgAttr);\n addDirective(directives, nName, 'A', maxPriority, ignoreDirective, attrStartName,\n attrEndName);\n }\n\n // use class as directive\n className = node.className;\n if (isObject(className)) {\n // Maybe SVGAnimatedString\n className = className.animVal;\n }\n if (isString(className) && className !== '') {\n while (match = CLASS_DIRECTIVE_REGEXP.exec(className)) {\n nName = directiveNormalize(match[2]);\n if (addDirective(directives, nName, 'C', maxPriority, ignoreDirective)) {\n attrs[nName] = trim(match[3]);\n }\n className = className.substr(match.index + match[0].length);\n }\n }\n break;\n case NODE_TYPE_TEXT: /* Text Node */\n addTextInterpolateDirective(directives, node.nodeValue);\n break;\n case NODE_TYPE_COMMENT: /* Comment */\n try {\n match = COMMENT_DIRECTIVE_REGEXP.exec(node.nodeValue);\n if (match) {\n nName = directiveNormalize(match[1]);\n if (addDirective(directives, nName, 'M', maxPriority, ignoreDirective)) {\n attrs[nName] = trim(match[2]);\n }\n }\n } catch (e) {\n // turns out that under some circumstances IE9 throws errors when one attempts to read\n // comment's node value.\n // Just ignore it and continue. (Can't seem to reproduce in test case.)\n }\n break;\n }\n\n directives.sort(byPriority);\n return directives;\n }\n\n /**\n * Given a node with an directive-start it collects all of the siblings until it finds\n * directive-end.\n * @param node\n * @param attrStart\n * @param attrEnd\n * @returns {*}\n */\n function groupScan(node, attrStart, attrEnd) {\n var nodes = [];\n var depth = 0;\n if (attrStart && node.hasAttribute && node.hasAttribute(attrStart)) {\n do {\n if (!node) {\n throw $compileMinErr('uterdir',\n \"Unterminated attribute, found '{0}' but no matching '{1}' found.\",\n attrStart, attrEnd);\n }\n if (node.nodeType == NODE_TYPE_ELEMENT) {\n if (node.hasAttribute(attrStart)) depth++;\n if (node.hasAttribute(attrEnd)) depth--;\n }\n nodes.push(node);\n node = node.nextSibling;\n } while (depth > 0);\n } else {\n nodes.push(node);\n }\n\n return jqLite(nodes);\n }\n\n /**\n * Wrapper for linking function which converts normal linking function into a grouped\n * linking function.\n * @param linkFn\n * @param attrStart\n * @param attrEnd\n * @returns {Function}\n */\n function groupElementsLinkFnWrapper(linkFn, attrStart, attrEnd) {\n return function(scope, element, attrs, controllers, transcludeFn) {\n element = groupScan(element[0], attrStart, attrEnd);\n return linkFn(scope, element, attrs, controllers, transcludeFn);\n };\n }\n\n /**\n * Once the directives have been collected, their compile functions are executed. This method\n * is responsible for inlining directive templates as well as terminating the application\n * of the directives if the terminal directive has been reached.\n *\n * @param {Array} directives Array of collected directives to execute their compile function.\n * this needs to be pre-sorted by priority order.\n * @param {Node} compileNode The raw DOM node to apply the compile functions to\n * @param {Object} templateAttrs The shared attribute function\n * @param {function(angular.Scope, cloneAttachFn=)} transcludeFn A linking function, where the\n * scope argument is auto-generated to the new\n * child of the transcluded parent scope.\n * @param {JQLite} jqCollection If we are working on the root of the compile tree then this\n * argument has the root jqLite array so that we can replace nodes\n * on it.\n * @param {Object=} originalReplaceDirective An optional directive that will be ignored when\n * compiling the transclusion.\n * @param {Array.} preLinkFns\n * @param {Array.} postLinkFns\n * @param {Object} previousCompileContext Context used for previous compilation of the current\n * node\n * @returns {Function} linkFn\n */\n function applyDirectivesToNode(directives, compileNode, templateAttrs, transcludeFn,\n jqCollection, originalReplaceDirective, preLinkFns, postLinkFns,\n previousCompileContext) {\n previousCompileContext = previousCompileContext || {};\n\n var terminalPriority = -Number.MAX_VALUE,\n newScopeDirective,\n controllerDirectives = previousCompileContext.controllerDirectives,\n controllers,\n newIsolateScopeDirective = previousCompileContext.newIsolateScopeDirective,\n templateDirective = previousCompileContext.templateDirective,\n nonTlbTranscludeDirective = previousCompileContext.nonTlbTranscludeDirective,\n hasTranscludeDirective = false,\n hasTemplate = false,\n hasElementTranscludeDirective = previousCompileContext.hasElementTranscludeDirective,\n $compileNode = templateAttrs.$$element = jqLite(compileNode),\n directive,\n directiveName,\n $template,\n replaceDirective = originalReplaceDirective,\n childTranscludeFn = transcludeFn,\n linkFn,\n directiveValue;\n\n // executes all directives on the current element\n for (var i = 0, ii = directives.length; i < ii; i++) {\n directive = directives[i];\n var attrStart = directive.$$start;\n var attrEnd = directive.$$end;\n\n // collect multiblock sections\n if (attrStart) {\n $compileNode = groupScan(compileNode, attrStart, attrEnd);\n }\n $template = undefined;\n\n if (terminalPriority > directive.priority) {\n break; // prevent further processing of directives\n }\n\n if (directiveValue = directive.scope) {\n\n // skip the check for directives with async templates, we'll check the derived sync\n // directive when the template arrives\n if (!directive.templateUrl) {\n if (isObject(directiveValue)) {\n // This directive is trying to add an isolated scope.\n // Check that there is no scope of any kind already\n assertNoDuplicate('new/isolated scope', newIsolateScopeDirective || newScopeDirective,\n directive, $compileNode);\n newIsolateScopeDirective = directive;\n } else {\n // This directive is trying to add a child scope.\n // Check that there is no isolated scope already\n assertNoDuplicate('new/isolated scope', newIsolateScopeDirective, directive,\n $compileNode);\n }\n }\n\n newScopeDirective = newScopeDirective || directive;\n }\n\n directiveName = directive.name;\n\n if (!directive.templateUrl && directive.controller) {\n directiveValue = directive.controller;\n controllerDirectives = controllerDirectives || {};\n assertNoDuplicate(\"'\" + directiveName + \"' controller\",\n controllerDirectives[directiveName], directive, $compileNode);\n controllerDirectives[directiveName] = directive;\n }\n\n if (directiveValue = directive.transclude) {\n hasTranscludeDirective = true;\n\n // Special case ngIf and ngRepeat so that we don't complain about duplicate transclusion.\n // This option should only be used by directives that know how to safely handle element transclusion,\n // where the transcluded nodes are added or replaced after linking.\n if (!directive.$$tlb) {\n assertNoDuplicate('transclusion', nonTlbTranscludeDirective, directive, $compileNode);\n nonTlbTranscludeDirective = directive;\n }\n\n if (directiveValue == 'element') {\n hasElementTranscludeDirective = true;\n terminalPriority = directive.priority;\n $template = $compileNode;\n $compileNode = templateAttrs.$$element =\n jqLite(document.createComment(' ' + directiveName + ': ' +\n templateAttrs[directiveName] + ' '));\n compileNode = $compileNode[0];\n replaceWith(jqCollection, sliceArgs($template), compileNode);\n\n childTranscludeFn = compile($template, transcludeFn, terminalPriority,\n replaceDirective && replaceDirective.name, {\n // Don't pass in:\n // - controllerDirectives - otherwise we'll create duplicates controllers\n // - newIsolateScopeDirective or templateDirective - combining templates with\n // element transclusion doesn't make sense.\n //\n // We need only nonTlbTranscludeDirective so that we prevent putting transclusion\n // on the same element more than once.\n nonTlbTranscludeDirective: nonTlbTranscludeDirective\n });\n } else {\n $template = jqLite(jqLiteClone(compileNode)).contents();\n $compileNode.empty(); // clear contents\n childTranscludeFn = compile($template, transcludeFn);\n }\n }\n\n if (directive.template) {\n hasTemplate = true;\n assertNoDuplicate('template', templateDirective, directive, $compileNode);\n templateDirective = directive;\n\n directiveValue = (isFunction(directive.template))\n ? directive.template($compileNode, templateAttrs)\n : directive.template;\n\n directiveValue = denormalizeTemplate(directiveValue);\n\n if (directive.replace) {\n replaceDirective = directive;\n if (jqLiteIsTextNode(directiveValue)) {\n $template = [];\n } else {\n $template = removeComments(wrapTemplate(directive.templateNamespace, trim(directiveValue)));\n }\n compileNode = $template[0];\n\n if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n throw $compileMinErr('tplrt',\n \"Template for directive '{0}' must have exactly one root element. {1}\",\n directiveName, '');\n }\n\n replaceWith(jqCollection, $compileNode, compileNode);\n\n var newTemplateAttrs = {$attr: {}};\n\n // combine directives from the original node and from the template:\n // - take the array of directives for this element\n // - split it into two parts, those that already applied (processed) and those that weren't (unprocessed)\n // - collect directives from the template and sort them by priority\n // - combine directives as: processed + template + unprocessed\n var templateDirectives = collectDirectives(compileNode, [], newTemplateAttrs);\n var unprocessedDirectives = directives.splice(i + 1, directives.length - (i + 1));\n\n if (newIsolateScopeDirective) {\n markDirectivesAsIsolate(templateDirectives);\n }\n directives = directives.concat(templateDirectives).concat(unprocessedDirectives);\n mergeTemplateAttributes(templateAttrs, newTemplateAttrs);\n\n ii = directives.length;\n } else {\n $compileNode.html(directiveValue);\n }\n }\n\n if (directive.templateUrl) {\n hasTemplate = true;\n assertNoDuplicate('template', templateDirective, directive, $compileNode);\n templateDirective = directive;\n\n if (directive.replace) {\n replaceDirective = directive;\n }\n\n nodeLinkFn = compileTemplateUrl(directives.splice(i, directives.length - i), $compileNode,\n templateAttrs, jqCollection, hasTranscludeDirective && childTranscludeFn, preLinkFns, postLinkFns, {\n controllerDirectives: controllerDirectives,\n newIsolateScopeDirective: newIsolateScopeDirective,\n templateDirective: templateDirective,\n nonTlbTranscludeDirective: nonTlbTranscludeDirective\n });\n ii = directives.length;\n } else if (directive.compile) {\n try {\n linkFn = directive.compile($compileNode, templateAttrs, childTranscludeFn);\n if (isFunction(linkFn)) {\n addLinkFns(null, linkFn, attrStart, attrEnd);\n } else if (linkFn) {\n addLinkFns(linkFn.pre, linkFn.post, attrStart, attrEnd);\n }\n } catch (e) {\n $exceptionHandler(e, startingTag($compileNode));\n }\n }\n\n if (directive.terminal) {\n nodeLinkFn.terminal = true;\n terminalPriority = Math.max(terminalPriority, directive.priority);\n }\n\n }\n\n nodeLinkFn.scope = newScopeDirective && newScopeDirective.scope === true;\n nodeLinkFn.transcludeOnThisElement = hasTranscludeDirective;\n nodeLinkFn.elementTranscludeOnThisElement = hasElementTranscludeDirective;\n nodeLinkFn.templateOnThisElement = hasTemplate;\n nodeLinkFn.transclude = childTranscludeFn;\n\n previousCompileContext.hasElementTranscludeDirective = hasElementTranscludeDirective;\n\n // might be normal or delayed nodeLinkFn depending on if templateUrl is present\n return nodeLinkFn;\n\n ////////////////////\n\n function addLinkFns(pre, post, attrStart, attrEnd) {\n if (pre) {\n if (attrStart) pre = groupElementsLinkFnWrapper(pre, attrStart, attrEnd);\n pre.require = directive.require;\n pre.directiveName = directiveName;\n if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n pre = cloneAndAnnotateFn(pre, {isolateScope: true});\n }\n preLinkFns.push(pre);\n }\n if (post) {\n if (attrStart) post = groupElementsLinkFnWrapper(post, attrStart, attrEnd);\n post.require = directive.require;\n post.directiveName = directiveName;\n if (newIsolateScopeDirective === directive || directive.$$isolateScope) {\n post = cloneAndAnnotateFn(post, {isolateScope: true});\n }\n postLinkFns.push(post);\n }\n }\n\n\n function getControllers(directiveName, require, $element, elementControllers) {\n var value, retrievalMethod = 'data', optional = false;\n var $searchElement = $element;\n var match;\n if (isString(require)) {\n match = require.match(REQUIRE_PREFIX_REGEXP);\n require = require.substring(match[0].length);\n\n if (match[3]) {\n if (match[1]) match[3] = null;\n else match[1] = match[3];\n }\n if (match[1] === '^') {\n retrievalMethod = 'inheritedData';\n } else if (match[1] === '^^') {\n retrievalMethod = 'inheritedData';\n $searchElement = $element.parent();\n }\n if (match[2] === '?') {\n optional = true;\n }\n\n value = null;\n\n if (elementControllers && retrievalMethod === 'data') {\n if (value = elementControllers[require]) {\n value = value.instance;\n }\n }\n value = value || $searchElement[retrievalMethod]('$' + require + 'Controller');\n\n if (!value && !optional) {\n throw $compileMinErr('ctreq',\n \"Controller '{0}', required by directive '{1}', can't be found!\",\n require, directiveName);\n }\n return value || null;\n } else if (isArray(require)) {\n value = [];\n forEach(require, function(require) {\n value.push(getControllers(directiveName, require, $element, elementControllers));\n });\n }\n return value;\n }\n\n\n function nodeLinkFn(childLinkFn, scope, linkNode, $rootElement, boundTranscludeFn) {\n var i, ii, linkFn, controller, isolateScope, elementControllers, transcludeFn, $element,\n attrs;\n\n if (compileNode === linkNode) {\n attrs = templateAttrs;\n $element = templateAttrs.$$element;\n } else {\n $element = jqLite(linkNode);\n attrs = new Attributes($element, templateAttrs);\n }\n\n if (newIsolateScopeDirective) {\n isolateScope = scope.$new(true);\n }\n\n if (boundTranscludeFn) {\n // track `boundTranscludeFn` so it can be unwrapped if `transcludeFn`\n // is later passed as `parentBoundTranscludeFn` to `publicLinkFn`\n transcludeFn = controllersBoundTransclude;\n transcludeFn.$$boundTransclude = boundTranscludeFn;\n }\n\n if (controllerDirectives) {\n // TODO: merge `controllers` and `elementControllers` into single object.\n controllers = {};\n elementControllers = {};\n forEach(controllerDirectives, function(directive) {\n var locals = {\n $scope: directive === newIsolateScopeDirective || directive.$$isolateScope ? isolateScope : scope,\n $element: $element,\n $attrs: attrs,\n $transclude: transcludeFn\n }, controllerInstance;\n\n controller = directive.controller;\n if (controller == '@') {\n controller = attrs[directive.name];\n }\n\n controllerInstance = $controller(controller, locals, true, directive.controllerAs);\n\n // For directives with element transclusion the element is a comment,\n // but jQuery .data doesn't support attaching data to comment nodes as it's hard to\n // clean up (http://bugs.jquery.com/ticket/8335).\n // Instead, we save the controllers for the element in a local hash and attach to .data\n // later, once we have the actual element.\n elementControllers[directive.name] = controllerInstance;\n if (!hasElementTranscludeDirective) {\n $element.data('$' + directive.name + 'Controller', controllerInstance.instance);\n }\n\n controllers[directive.name] = controllerInstance;\n });\n }\n\n if (newIsolateScopeDirective) {\n compile.$$addScopeInfo($element, isolateScope, true, !(templateDirective && (templateDirective === newIsolateScopeDirective ||\n templateDirective === newIsolateScopeDirective.$$originalDirective)));\n compile.$$addScopeClass($element, true);\n\n var isolateScopeController = controllers && controllers[newIsolateScopeDirective.name];\n var isolateBindingContext = isolateScope;\n if (isolateScopeController && isolateScopeController.identifier &&\n newIsolateScopeDirective.bindToController === true) {\n isolateBindingContext = isolateScopeController.instance;\n }\n\n forEach(isolateScope.$$isolateBindings = newIsolateScopeDirective.$$isolateBindings, function(definition, scopeName) {\n var attrName = definition.attrName,\n optional = definition.optional,\n mode = definition.mode, // @, =, or &\n lastValue,\n parentGet, parentSet, compare;\n\n switch (mode) {\n\n case '@':\n attrs.$observe(attrName, function(value) {\n isolateBindingContext[scopeName] = value;\n });\n attrs.$$observers[attrName].$$scope = scope;\n if (attrs[attrName]) {\n // If the attribute has been provided then we trigger an interpolation to ensure\n // the value is there for use in the link fn\n isolateBindingContext[scopeName] = $interpolate(attrs[attrName])(scope);\n }\n break;\n\n case '=':\n if (optional && !attrs[attrName]) {\n return;\n }\n parentGet = $parse(attrs[attrName]);\n if (parentGet.literal) {\n compare = equals;\n } else {\n compare = function(a, b) { return a === b || (a !== a && b !== b); };\n }\n parentSet = parentGet.assign || function() {\n // reset the change, or we will throw this exception on every $digest\n lastValue = isolateBindingContext[scopeName] = parentGet(scope);\n throw $compileMinErr('nonassign',\n \"Expression '{0}' used with directive '{1}' is non-assignable!\",\n attrs[attrName], newIsolateScopeDirective.name);\n };\n lastValue = isolateBindingContext[scopeName] = parentGet(scope);\n var parentValueWatch = function parentValueWatch(parentValue) {\n if (!compare(parentValue, isolateBindingContext[scopeName])) {\n // we are out of sync and need to copy\n if (!compare(parentValue, lastValue)) {\n // parent changed and it has precedence\n isolateBindingContext[scopeName] = parentValue;\n } else {\n // if the parent can be assigned then do so\n parentSet(scope, parentValue = isolateBindingContext[scopeName]);\n }\n }\n return lastValue = parentValue;\n };\n parentValueWatch.$stateful = true;\n var unwatch;\n if (definition.collection) {\n unwatch = scope.$watchCollection(attrs[attrName], parentValueWatch);\n } else {\n unwatch = scope.$watch($parse(attrs[attrName], parentValueWatch), null, parentGet.literal);\n }\n isolateScope.$on('$destroy', unwatch);\n break;\n\n case '&':\n parentGet = $parse(attrs[attrName]);\n isolateBindingContext[scopeName] = function(locals) {\n return parentGet(scope, locals);\n };\n break;\n }\n });\n }\n if (controllers) {\n forEach(controllers, function(controller) {\n controller();\n });\n controllers = null;\n }\n\n // PRELINKING\n for (i = 0, ii = preLinkFns.length; i < ii; i++) {\n linkFn = preLinkFns[i];\n invokeLinkFn(linkFn,\n linkFn.isolateScope ? isolateScope : scope,\n $element,\n attrs,\n linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n transcludeFn\n );\n }\n\n // RECURSION\n // We only pass the isolate scope, if the isolate directive has a template,\n // otherwise the child elements do not belong to the isolate directive.\n var scopeToChild = scope;\n if (newIsolateScopeDirective && (newIsolateScopeDirective.template || newIsolateScopeDirective.templateUrl === null)) {\n scopeToChild = isolateScope;\n }\n childLinkFn && childLinkFn(scopeToChild, linkNode.childNodes, undefined, boundTranscludeFn);\n\n // POSTLINKING\n for (i = postLinkFns.length - 1; i >= 0; i--) {\n linkFn = postLinkFns[i];\n invokeLinkFn(linkFn,\n linkFn.isolateScope ? isolateScope : scope,\n $element,\n attrs,\n linkFn.require && getControllers(linkFn.directiveName, linkFn.require, $element, elementControllers),\n transcludeFn\n );\n }\n\n // This is the function that is injected as `$transclude`.\n // Note: all arguments are optional!\n function controllersBoundTransclude(scope, cloneAttachFn, futureParentElement) {\n var transcludeControllers;\n\n // No scope passed in:\n if (!isScope(scope)) {\n futureParentElement = cloneAttachFn;\n cloneAttachFn = scope;\n scope = undefined;\n }\n\n if (hasElementTranscludeDirective) {\n transcludeControllers = elementControllers;\n }\n if (!futureParentElement) {\n futureParentElement = hasElementTranscludeDirective ? $element.parent() : $element;\n }\n return boundTranscludeFn(scope, cloneAttachFn, transcludeControllers, futureParentElement, scopeToChild);\n }\n }\n }\n\n function markDirectivesAsIsolate(directives) {\n // mark all directives as needing isolate scope.\n for (var j = 0, jj = directives.length; j < jj; j++) {\n directives[j] = inherit(directives[j], {$$isolateScope: true});\n }\n }\n\n /**\n * looks up the directive and decorates it with exception handling and proper parameters. We\n * call this the boundDirective.\n *\n * @param {string} name name of the directive to look up.\n * @param {string} location The directive must be found in specific format.\n * String containing any of theses characters:\n *\n * * `E`: element name\n * * `A': attribute\n * * `C`: class\n * * `M`: comment\n * @returns {boolean} true if directive was added.\n */\n function addDirective(tDirectives, name, location, maxPriority, ignoreDirective, startAttrName,\n endAttrName) {\n if (name === ignoreDirective) return null;\n var match = null;\n if (hasDirectives.hasOwnProperty(name)) {\n for (var directive, directives = $injector.get(name + Suffix),\n i = 0, ii = directives.length; i < ii; i++) {\n try {\n directive = directives[i];\n if ((maxPriority === undefined || maxPriority > directive.priority) &&\n directive.restrict.indexOf(location) != -1) {\n if (startAttrName) {\n directive = inherit(directive, {$$start: startAttrName, $$end: endAttrName});\n }\n tDirectives.push(directive);\n match = directive;\n }\n } catch (e) { $exceptionHandler(e); }\n }\n }\n return match;\n }\n\n\n /**\n * looks up the directive and returns true if it is a multi-element directive,\n * and therefore requires DOM nodes between -start and -end markers to be grouped\n * together.\n *\n * @param {string} name name of the directive to look up.\n * @returns true if directive was registered as multi-element.\n */\n function directiveIsMultiElement(name) {\n if (hasDirectives.hasOwnProperty(name)) {\n for (var directive, directives = $injector.get(name + Suffix),\n i = 0, ii = directives.length; i < ii; i++) {\n directive = directives[i];\n if (directive.multiElement) {\n return true;\n }\n }\n }\n return false;\n }\n\n /**\n * When the element is replaced with HTML template then the new attributes\n * on the template need to be merged with the existing attributes in the DOM.\n * The desired effect is to have both of the attributes present.\n *\n * @param {object} dst destination attributes (original DOM)\n * @param {object} src source attributes (from the directive template)\n */\n function mergeTemplateAttributes(dst, src) {\n var srcAttr = src.$attr,\n dstAttr = dst.$attr,\n $element = dst.$$element;\n\n // reapply the old attributes to the new element\n forEach(dst, function(value, key) {\n if (key.charAt(0) != '$') {\n if (src[key] && src[key] !== value) {\n value += (key === 'style' ? ';' : ' ') + src[key];\n }\n dst.$set(key, value, true, srcAttr[key]);\n }\n });\n\n // copy the new attributes on the old attrs object\n forEach(src, function(value, key) {\n if (key == 'class') {\n safeAddClass($element, value);\n dst['class'] = (dst['class'] ? dst['class'] + ' ' : '') + value;\n } else if (key == 'style') {\n $element.attr('style', $element.attr('style') + ';' + value);\n dst['style'] = (dst['style'] ? dst['style'] + ';' : '') + value;\n // `dst` will never contain hasOwnProperty as DOM parser won't let it.\n // You will get an \"InvalidCharacterError: DOM Exception 5\" error if you\n // have an attribute like \"has-own-property\" or \"data-has-own-property\", etc.\n } else if (key.charAt(0) != '$' && !dst.hasOwnProperty(key)) {\n dst[key] = value;\n dstAttr[key] = srcAttr[key];\n }\n });\n }\n\n\n function compileTemplateUrl(directives, $compileNode, tAttrs,\n $rootElement, childTranscludeFn, preLinkFns, postLinkFns, previousCompileContext) {\n var linkQueue = [],\n afterTemplateNodeLinkFn,\n afterTemplateChildLinkFn,\n beforeTemplateCompileNode = $compileNode[0],\n origAsyncDirective = directives.shift(),\n derivedSyncDirective = inherit(origAsyncDirective, {\n templateUrl: null, transclude: null, replace: null, $$originalDirective: origAsyncDirective\n }),\n templateUrl = (isFunction(origAsyncDirective.templateUrl))\n ? origAsyncDirective.templateUrl($compileNode, tAttrs)\n : origAsyncDirective.templateUrl,\n templateNamespace = origAsyncDirective.templateNamespace;\n\n $compileNode.empty();\n\n $templateRequest($sce.getTrustedResourceUrl(templateUrl))\n .then(function(content) {\n var compileNode, tempTemplateAttrs, $template, childBoundTranscludeFn;\n\n content = denormalizeTemplate(content);\n\n if (origAsyncDirective.replace) {\n if (jqLiteIsTextNode(content)) {\n $template = [];\n } else {\n $template = removeComments(wrapTemplate(templateNamespace, trim(content)));\n }\n compileNode = $template[0];\n\n if ($template.length != 1 || compileNode.nodeType !== NODE_TYPE_ELEMENT) {\n throw $compileMinErr('tplrt',\n \"Template for directive '{0}' must have exactly one root element. {1}\",\n origAsyncDirective.name, templateUrl);\n }\n\n tempTemplateAttrs = {$attr: {}};\n replaceWith($rootElement, $compileNode, compileNode);\n var templateDirectives = collectDirectives(compileNode, [], tempTemplateAttrs);\n\n if (isObject(origAsyncDirective.scope)) {\n markDirectivesAsIsolate(templateDirectives);\n }\n directives = templateDirectives.concat(directives);\n mergeTemplateAttributes(tAttrs, tempTemplateAttrs);\n } else {\n compileNode = beforeTemplateCompileNode;\n $compileNode.html(content);\n }\n\n directives.unshift(derivedSyncDirective);\n\n afterTemplateNodeLinkFn = applyDirectivesToNode(directives, compileNode, tAttrs,\n childTranscludeFn, $compileNode, origAsyncDirective, preLinkFns, postLinkFns,\n previousCompileContext);\n forEach($rootElement, function(node, i) {\n if (node == compileNode) {\n $rootElement[i] = $compileNode[0];\n }\n });\n afterTemplateChildLinkFn = compileNodes($compileNode[0].childNodes, childTranscludeFn);\n\n while (linkQueue.length) {\n var scope = linkQueue.shift(),\n beforeTemplateLinkNode = linkQueue.shift(),\n linkRootElement = linkQueue.shift(),\n boundTranscludeFn = linkQueue.shift(),\n linkNode = $compileNode[0];\n\n if (scope.$$destroyed) continue;\n\n if (beforeTemplateLinkNode !== beforeTemplateCompileNode) {\n var oldClasses = beforeTemplateLinkNode.className;\n\n if (!(previousCompileContext.hasElementTranscludeDirective &&\n origAsyncDirective.replace)) {\n // it was cloned therefore we have to clone as well.\n linkNode = jqLiteClone(compileNode);\n }\n replaceWith(linkRootElement, jqLite(beforeTemplateLinkNode), linkNode);\n\n // Copy in CSS classes from original node\n safeAddClass(jqLite(linkNode), oldClasses);\n }\n if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n } else {\n childBoundTranscludeFn = boundTranscludeFn;\n }\n afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, linkNode, $rootElement,\n childBoundTranscludeFn);\n }\n linkQueue = null;\n });\n\n return function delayedNodeLinkFn(ignoreChildLinkFn, scope, node, rootElement, boundTranscludeFn) {\n var childBoundTranscludeFn = boundTranscludeFn;\n if (scope.$$destroyed) return;\n if (linkQueue) {\n linkQueue.push(scope,\n node,\n rootElement,\n childBoundTranscludeFn);\n } else {\n if (afterTemplateNodeLinkFn.transcludeOnThisElement) {\n childBoundTranscludeFn = createBoundTranscludeFn(scope, afterTemplateNodeLinkFn.transclude, boundTranscludeFn);\n }\n afterTemplateNodeLinkFn(afterTemplateChildLinkFn, scope, node, rootElement, childBoundTranscludeFn);\n }\n };\n }\n\n\n /**\n * Sorting function for bound directives.\n */\n function byPriority(a, b) {\n var diff = b.priority - a.priority;\n if (diff !== 0) return diff;\n if (a.name !== b.name) return (a.name < b.name) ? -1 : 1;\n return a.index - b.index;\n }\n\n\n function assertNoDuplicate(what, previousDirective, directive, element) {\n if (previousDirective) {\n throw $compileMinErr('multidir', 'Multiple directives [{0}, {1}] asking for {2} on: {3}',\n previousDirective.name, directive.name, what, startingTag(element));\n }\n }\n\n\n function addTextInterpolateDirective(directives, text) {\n var interpolateFn = $interpolate(text, true);\n if (interpolateFn) {\n directives.push({\n priority: 0,\n compile: function textInterpolateCompileFn(templateNode) {\n var templateNodeParent = templateNode.parent(),\n hasCompileParent = !!templateNodeParent.length;\n\n // When transcluding a template that has bindings in the root\n // we don't have a parent and thus need to add the class during linking fn.\n if (hasCompileParent) compile.$$addBindingClass(templateNodeParent);\n\n return function textInterpolateLinkFn(scope, node) {\n var parent = node.parent();\n if (!hasCompileParent) compile.$$addBindingClass(parent);\n compile.$$addBindingInfo(parent, interpolateFn.expressions);\n scope.$watch(interpolateFn, function interpolateFnWatchAction(value) {\n node[0].nodeValue = value;\n });\n };\n }\n });\n }\n }\n\n\n function wrapTemplate(type, template) {\n type = lowercase(type || 'html');\n switch (type) {\n case 'svg':\n case 'math':\n var wrapper = document.createElement('div');\n wrapper.innerHTML = '<' + type + '>' + template + '';\n return wrapper.childNodes[0].childNodes;\n default:\n return template;\n }\n }\n\n\n function getTrustedContext(node, attrNormalizedName) {\n if (attrNormalizedName == \"srcdoc\") {\n return $sce.HTML;\n }\n var tag = nodeName_(node);\n // maction[xlink:href] can source SVG. It's not limited to .\n if (attrNormalizedName == \"xlinkHref\" ||\n (tag == \"form\" && attrNormalizedName == \"action\") ||\n (tag != \"img\" && (attrNormalizedName == \"src\" ||\n attrNormalizedName == \"ngSrc\"))) {\n return $sce.RESOURCE_URL;\n }\n }\n\n\n function addAttrInterpolateDirective(node, directives, value, name, allOrNothing) {\n var trustedContext = getTrustedContext(node, name);\n allOrNothing = ALL_OR_NOTHING_ATTRS[name] || allOrNothing;\n\n var interpolateFn = $interpolate(value, true, trustedContext, allOrNothing);\n\n // no interpolation found -> ignore\n if (!interpolateFn) return;\n\n\n if (name === \"multiple\" && nodeName_(node) === \"select\") {\n throw $compileMinErr(\"selmulti\",\n \"Binding to the 'multiple' attribute is not supported. Element: {0}\",\n startingTag(node));\n }\n\n directives.push({\n priority: 100,\n compile: function() {\n return {\n pre: function attrInterpolatePreLinkFn(scope, element, attr) {\n var $$observers = (attr.$$observers || (attr.$$observers = {}));\n\n if (EVENT_HANDLER_ATTR_REGEXP.test(name)) {\n throw $compileMinErr('nodomevents',\n \"Interpolations for HTML DOM event attributes are disallowed. Please use the \" +\n \"ng- versions (such as ng-click instead of onclick) instead.\");\n }\n\n // If the attribute has changed since last $interpolate()ed\n var newValue = attr[name];\n if (newValue !== value) {\n // we need to interpolate again since the attribute value has been updated\n // (e.g. by another directive's compile function)\n // ensure unset/empty values make interpolateFn falsy\n interpolateFn = newValue && $interpolate(newValue, true, trustedContext, allOrNothing);\n value = newValue;\n }\n\n // if attribute was updated so that there is no interpolation going on we don't want to\n // register any observers\n if (!interpolateFn) return;\n\n // initialize attr object so that it's ready in case we need the value for isolate\n // scope initialization, otherwise the value would not be available from isolate\n // directive's linking fn during linking phase\n attr[name] = interpolateFn(scope);\n\n ($$observers[name] || ($$observers[name] = [])).$$inter = true;\n (attr.$$observers && attr.$$observers[name].$$scope || scope).\n $watch(interpolateFn, function interpolateFnWatchAction(newValue, oldValue) {\n //special case for class attribute addition + removal\n //so that class changes can tap into the animation\n //hooks provided by the $animate service. Be sure to\n //skip animations when the first digest occurs (when\n //both the new and the old values are the same) since\n //the CSS classes are the non-interpolated values\n if (name === 'class' && newValue != oldValue) {\n attr.$updateClass(newValue, oldValue);\n } else {\n attr.$set(name, newValue);\n }\n });\n }\n };\n }\n });\n }\n\n\n /**\n * This is a special jqLite.replaceWith, which can replace items which\n * have no parents, provided that the containing jqLite collection is provided.\n *\n * @param {JqLite=} $rootElement The root of the compile tree. Used so that we can replace nodes\n * in the root of the tree.\n * @param {JqLite} elementsToRemove The jqLite element which we are going to replace. We keep\n * the shell, but replace its DOM node reference.\n * @param {Node} newNode The new DOM node.\n */\n function replaceWith($rootElement, elementsToRemove, newNode) {\n var firstElementToRemove = elementsToRemove[0],\n removeCount = elementsToRemove.length,\n parent = firstElementToRemove.parentNode,\n i, ii;\n\n if ($rootElement) {\n for (i = 0, ii = $rootElement.length; i < ii; i++) {\n if ($rootElement[i] == firstElementToRemove) {\n $rootElement[i++] = newNode;\n for (var j = i, j2 = j + removeCount - 1,\n jj = $rootElement.length;\n j < jj; j++, j2++) {\n if (j2 < jj) {\n $rootElement[j] = $rootElement[j2];\n } else {\n delete $rootElement[j];\n }\n }\n $rootElement.length -= removeCount - 1;\n\n // If the replaced element is also the jQuery .context then replace it\n // .context is a deprecated jQuery api, so we should set it only when jQuery set it\n // http://api.jquery.com/context/\n if ($rootElement.context === firstElementToRemove) {\n $rootElement.context = newNode;\n }\n break;\n }\n }\n }\n\n if (parent) {\n parent.replaceChild(newNode, firstElementToRemove);\n }\n\n // TODO(perf): what's this document fragment for? is it needed? can we at least reuse it?\n var fragment = document.createDocumentFragment();\n fragment.appendChild(firstElementToRemove);\n\n // Copy over user data (that includes Angular's $scope etc.). Don't copy private\n // data here because there's no public interface in jQuery to do that and copying over\n // event listeners (which is the main use of private data) wouldn't work anyway.\n jqLite(newNode).data(jqLite(firstElementToRemove).data());\n\n // Remove data of the replaced element. We cannot just call .remove()\n // on the element it since that would deallocate scope that is needed\n // for the new node. Instead, remove the data \"manually\".\n if (!jQuery) {\n delete jqLite.cache[firstElementToRemove[jqLite.expando]];\n } else {\n // jQuery 2.x doesn't expose the data storage. Use jQuery.cleanData to clean up after\n // the replaced element. The cleanData version monkey-patched by Angular would cause\n // the scope to be trashed and we do need the very same scope to work with the new\n // element. However, we cannot just cache the non-patched version and use it here as\n // that would break if another library patches the method after Angular does (one\n // example is jQuery UI). Instead, set a flag indicating scope destroying should be\n // skipped this one time.\n skipDestroyOnNextJQueryCleanData = true;\n jQuery.cleanData([firstElementToRemove]);\n }\n\n for (var k = 1, kk = elementsToRemove.length; k < kk; k++) {\n var element = elementsToRemove[k];\n jqLite(element).remove(); // must do this way to clean up expando\n fragment.appendChild(element);\n delete elementsToRemove[k];\n }\n\n elementsToRemove[0] = newNode;\n elementsToRemove.length = 1;\n }\n\n\n function cloneAndAnnotateFn(fn, annotation) {\n return extend(function() { return fn.apply(null, arguments); }, fn, annotation);\n }\n\n\n function invokeLinkFn(linkFn, scope, $element, attrs, controllers, transcludeFn) {\n try {\n linkFn(scope, $element, attrs, controllers, transcludeFn);\n } catch (e) {\n $exceptionHandler(e, startingTag($element));\n }\n }\n }];\n}\n\nvar PREFIX_REGEXP = /^((?:x|data)[\\:\\-_])/i;\n/**\n * Converts all accepted directives format into proper directive name.\n * @param name Name to normalize\n */\nfunction directiveNormalize(name) {\n return camelCase(name.replace(PREFIX_REGEXP, ''));\n}\n\n/**\n * @ngdoc type\n * @name $compile.directive.Attributes\n *\n * @description\n * A shared object between directive compile / linking functions which contains normalized DOM\n * element attributes. The values reflect current binding state `{{ }}`. The normalization is\n * needed since all of these are treated as equivalent in Angular:\n *\n * ```\n * \n * ```\n */\n\n/**\n * @ngdoc property\n * @name $compile.directive.Attributes#$attr\n *\n * @description\n * A map of DOM element attribute names to the normalized name. This is\n * needed to do reverse lookup from normalized name back to actual name.\n */\n\n\n/**\n * @ngdoc method\n * @name $compile.directive.Attributes#$set\n * @kind function\n *\n * @description\n * Set DOM element attribute value.\n *\n *\n * @param {string} name Normalized element attribute name of the property to modify. The name is\n * reverse-translated using the {@link ng.$compile.directive.Attributes#$attr $attr}\n * property to the original name.\n * @param {string} value Value to set the attribute to. The value can be an interpolated string.\n */\n\n\n\n/**\n * Closure compiler type information\n */\n\nfunction nodesetLinkingFn(\n /* angular.Scope */ scope,\n /* NodeList */ nodeList,\n /* Element */ rootElement,\n /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction directiveLinkingFn(\n /* nodesetLinkingFn */ nodesetLinkingFn,\n /* angular.Scope */ scope,\n /* Node */ node,\n /* Element */ rootElement,\n /* function(Function) */ boundTranscludeFn\n) {}\n\nfunction tokenDifference(str1, str2) {\n var values = '',\n tokens1 = str1.split(/\\s+/),\n tokens2 = str2.split(/\\s+/);\n\n outer:\n for (var i = 0; i < tokens1.length; i++) {\n var token = tokens1[i];\n for (var j = 0; j < tokens2.length; j++) {\n if (token == tokens2[j]) continue outer;\n }\n values += (values.length > 0 ? ' ' : '') + token;\n }\n return values;\n}\n\nfunction removeComments(jqNodes) {\n jqNodes = jqLite(jqNodes);\n var i = jqNodes.length;\n\n if (i <= 1) {\n return jqNodes;\n }\n\n while (i--) {\n var node = jqNodes[i];\n if (node.nodeType === NODE_TYPE_COMMENT) {\n splice.call(jqNodes, i, 1);\n }\n }\n return jqNodes;\n}\n\nvar $controllerMinErr = minErr('$controller');\n\n/**\n * @ngdoc provider\n * @name $controllerProvider\n * @description\n * The {@link ng.$controller $controller service} is used by Angular to create new\n * controllers.\n *\n * This provider allows controller registration via the\n * {@link ng.$controllerProvider#register register} method.\n */\nfunction $ControllerProvider() {\n var controllers = {},\n globals = false,\n CNTRL_REG = /^(\\S+)(\\s+as\\s+(\\w+))?$/;\n\n\n /**\n * @ngdoc method\n * @name $controllerProvider#register\n * @param {string|Object} name Controller name, or an object map of controllers where the keys are\n * the names and the values are the constructors.\n * @param {Function|Array} constructor Controller constructor fn (optionally decorated with DI\n * annotations in the array notation).\n */\n this.register = function(name, constructor) {\n assertNotHasOwnProperty(name, 'controller');\n if (isObject(name)) {\n extend(controllers, name);\n } else {\n controllers[name] = constructor;\n }\n };\n\n /**\n * @ngdoc method\n * @name $controllerProvider#allowGlobals\n * @description If called, allows `$controller` to find controller constructors on `window`\n */\n this.allowGlobals = function() {\n globals = true;\n };\n\n\n this.$get = ['$injector', '$window', function($injector, $window) {\n\n /**\n * @ngdoc service\n * @name $controller\n * @requires $injector\n *\n * @param {Function|string} constructor If called with a function then it's considered to be the\n * controller constructor function. Otherwise it's considered to be a string which is used\n * to retrieve the controller constructor using the following steps:\n *\n * * check if a controller with given name is registered via `$controllerProvider`\n * * check if evaluating the string on the current scope returns a constructor\n * * if $controllerProvider#allowGlobals, check `window[constructor]` on the global\n * `window` object (not recommended)\n *\n * The string can use the `controller as property` syntax, where the controller instance is published\n * as the specified property on the `scope`; the `scope` must be injected into `locals` param for this\n * to work correctly.\n *\n * @param {Object} locals Injection locals for Controller.\n * @return {Object} Instance of given controller.\n *\n * @description\n * `$controller` service is responsible for instantiating controllers.\n *\n * It's just a simple call to {@link auto.$injector $injector}, but extracted into\n * a service, so that one can override this service with [BC version](https://gist.github.com/1649788).\n */\n return function(expression, locals, later, ident) {\n // PRIVATE API:\n // param `later` --- indicates that the controller's constructor is invoked at a later time.\n // If true, $controller will allocate the object with the correct\n // prototype chain, but will not invoke the controller until a returned\n // callback is invoked.\n // param `ident` --- An optional label which overrides the label parsed from the controller\n // expression, if any.\n var instance, match, constructor, identifier;\n later = later === true;\n if (ident && isString(ident)) {\n identifier = ident;\n }\n\n if (isString(expression)) {\n match = expression.match(CNTRL_REG);\n if (!match) {\n throw $controllerMinErr('ctrlfmt',\n \"Badly formed controller string '{0}'. \" +\n \"Must match `__name__ as __id__` or `__name__`.\", expression);\n }\n constructor = match[1],\n identifier = identifier || match[3];\n expression = controllers.hasOwnProperty(constructor)\n ? controllers[constructor]\n : getter(locals.$scope, constructor, true) ||\n (globals ? getter($window, constructor, true) : undefined);\n\n assertArgFn(expression, constructor, true);\n }\n\n if (later) {\n // Instantiate controller later:\n // This machinery is used to create an instance of the object before calling the\n // controller's constructor itself.\n //\n // This allows properties to be added to the controller before the constructor is\n // invoked. Primarily, this is used for isolate scope bindings in $compile.\n //\n // This feature is not intended for use by applications, and is thus not documented\n // publicly.\n // Object creation: http://jsperf.com/create-constructor/2\n var controllerPrototype = (isArray(expression) ?\n expression[expression.length - 1] : expression).prototype;\n instance = Object.create(controllerPrototype || null);\n\n if (identifier) {\n addIdentifier(locals, identifier, instance, constructor || expression.name);\n }\n\n return extend(function() {\n $injector.invoke(expression, instance, locals, constructor);\n return instance;\n }, {\n instance: instance,\n identifier: identifier\n });\n }\n\n instance = $injector.instantiate(expression, locals, constructor);\n\n if (identifier) {\n addIdentifier(locals, identifier, instance, constructor || expression.name);\n }\n\n return instance;\n };\n\n function addIdentifier(locals, identifier, instance, name) {\n if (!(locals && isObject(locals.$scope))) {\n throw minErr('$controller')('noscp',\n \"Cannot export controller '{0}' as '{1}'! No $scope object provided via `locals`.\",\n name, identifier);\n }\n\n locals.$scope[identifier] = instance;\n }\n }];\n}\n\n/**\n * @ngdoc service\n * @name $document\n * @requires $window\n *\n * @description\n * A {@link angular.element jQuery or jqLite} wrapper for the browser's `window.document` object.\n *\n * @example\n \n \n \n
$document title:
\n
window.document title:
\n
\n * Note, that code executed in event-listeners (even those registered using jqLite's `on`/`bind`\n * methods) does not delegate exceptions to the {@link ng.$exceptionHandler $exceptionHandler}\n * (unless executed during a digest).\n *\n * If you wish, you can manually delegate exceptions, e.g.\n * `try { ... } catch(e) { $exceptionHandler(e); }`\n *\n * @param {Error} exception Exception associated with the error.\n * @param {string=} cause optional information about the context in which\n * the error was thrown.\n *\n */\nfunction $ExceptionHandlerProvider() {\n this.$get = ['$log', function($log) {\n return function(exception, cause) {\n $log.error.apply($log, arguments);\n };\n }];\n}\n\nvar APPLICATION_JSON = 'application/json';\nvar CONTENT_TYPE_APPLICATION_JSON = {'Content-Type': APPLICATION_JSON + ';charset=utf-8'};\nvar JSON_START = /^\\[|^\\{(?!\\{)/;\nvar JSON_ENDS = {\n '[': /]$/,\n '{': /}$/\n};\nvar JSON_PROTECTION_PREFIX = /^\\)\\]\\}',?\\n/;\n\nfunction defaultHttpResponseTransform(data, headers) {\n if (isString(data)) {\n // Strip json vulnerability protection prefix and trim whitespace\n var tempData = data.replace(JSON_PROTECTION_PREFIX, '').trim();\n\n if (tempData) {\n var contentType = headers('Content-Type');\n if ((contentType && (contentType.indexOf(APPLICATION_JSON) === 0)) || isJsonLike(tempData)) {\n data = fromJson(tempData);\n }\n }\n }\n\n return data;\n}\n\nfunction isJsonLike(str) {\n var jsonStart = str.match(JSON_START);\n return jsonStart && JSON_ENDS[jsonStart[0]].test(str);\n}\n\n/**\n * Parse headers into key value object\n *\n * @param {string} headers Raw headers as a string\n * @returns {Object} Parsed headers as key value object\n */\nfunction parseHeaders(headers) {\n var parsed = createMap(), key, val, i;\n\n if (!headers) return parsed;\n\n forEach(headers.split('\\n'), function(line) {\n i = line.indexOf(':');\n key = lowercase(trim(line.substr(0, i)));\n val = trim(line.substr(i + 1));\n\n if (key) {\n parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n }\n });\n\n return parsed;\n}\n\n\n/**\n * Returns a function that provides access to parsed headers.\n *\n * Headers are lazy parsed when first requested.\n * @see parseHeaders\n *\n * @param {(string|Object)} headers Headers to provide access to.\n * @returns {function(string=)} Returns a getter function which if called with:\n *\n * - if called with single an argument returns a single header value or null\n * - if called with no arguments returns an object containing all headers.\n */\nfunction headersGetter(headers) {\n var headersObj = isObject(headers) ? headers : undefined;\n\n return function(name) {\n if (!headersObj) headersObj = parseHeaders(headers);\n\n if (name) {\n var value = headersObj[lowercase(name)];\n if (value === void 0) {\n value = null;\n }\n return value;\n }\n\n return headersObj;\n };\n}\n\n\n/**\n * Chain all given functions\n *\n * This function is used for both request and response transforming\n *\n * @param {*} data Data to transform.\n * @param {function(string=)} headers HTTP headers getter fn.\n * @param {number} status HTTP status code of the response.\n * @param {(Function|Array.)} fns Function or an array of functions.\n * @returns {*} Transformed data.\n */\nfunction transformData(data, headers, status, fns) {\n if (isFunction(fns))\n return fns(data, headers, status);\n\n forEach(fns, function(fn) {\n data = fn(data, headers, status);\n });\n\n return data;\n}\n\n\nfunction isSuccess(status) {\n return 200 <= status && status < 300;\n}\n\n\n/**\n * @ngdoc provider\n * @name $httpProvider\n * @description\n * Use `$httpProvider` to change the default behavior of the {@link ng.$http $http} service.\n * */\nfunction $HttpProvider() {\n /**\n * @ngdoc property\n * @name $httpProvider#defaults\n * @description\n *\n * Object containing default values for all {@link ng.$http $http} requests.\n *\n * - **`defaults.cache`** - {Object} - an object built with {@link ng.$cacheFactory `$cacheFactory`}\n * that will provide the cache for all requests who set their `cache` property to `true`.\n * If you set the `default.cache = false` then only requests that specify their own custom\n * cache object will be cached. See {@link $http#caching $http Caching} for more information.\n *\n * - **`defaults.xsrfCookieName`** - {string} - Name of cookie containing the XSRF token.\n * Defaults value is `'XSRF-TOKEN'`.\n *\n * - **`defaults.xsrfHeaderName`** - {string} - Name of HTTP header to populate with the\n * XSRF token. Defaults value is `'X-XSRF-TOKEN'`.\n *\n * - **`defaults.headers`** - {Object} - Default headers for all $http requests.\n * Refer to {@link ng.$http#setting-http-headers $http} for documentation on\n * setting default headers.\n * - **`defaults.headers.common`**\n * - **`defaults.headers.post`**\n * - **`defaults.headers.put`**\n * - **`defaults.headers.patch`**\n *\n **/\n var defaults = this.defaults = {\n // transform incoming response data\n transformResponse: [defaultHttpResponseTransform],\n\n // transform outgoing request data\n transformRequest: [function(d) {\n return isObject(d) && !isFile(d) && !isBlob(d) && !isFormData(d) ? toJson(d) : d;\n }],\n\n // default headers\n headers: {\n common: {\n 'Accept': 'application/json, text/plain, */*'\n },\n post: shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n put: shallowCopy(CONTENT_TYPE_APPLICATION_JSON),\n patch: shallowCopy(CONTENT_TYPE_APPLICATION_JSON)\n },\n\n xsrfCookieName: 'XSRF-TOKEN',\n xsrfHeaderName: 'X-XSRF-TOKEN'\n };\n\n var useApplyAsync = false;\n /**\n * @ngdoc method\n * @name $httpProvider#useApplyAsync\n * @description\n *\n * Configure $http service to combine processing of multiple http responses received at around\n * the same time via {@link ng.$rootScope.Scope#$applyAsync $rootScope.$applyAsync}. This can result in\n * significant performance improvement for bigger applications that make many HTTP requests\n * concurrently (common during application bootstrap).\n *\n * Defaults to false. If no value is specifed, returns the current configured value.\n *\n * @param {boolean=} value If true, when requests are loaded, they will schedule a deferred\n * \"apply\" on the next tick, giving time for subsequent requests in a roughly ~10ms window\n * to load and share the same digest cycle.\n *\n * @returns {boolean|Object} If a value is specified, returns the $httpProvider for chaining.\n * otherwise, returns the current configured value.\n **/\n this.useApplyAsync = function(value) {\n if (isDefined(value)) {\n useApplyAsync = !!value;\n return this;\n }\n return useApplyAsync;\n };\n\n /**\n * @ngdoc property\n * @name $httpProvider#interceptors\n * @description\n *\n * Array containing service factories for all synchronous or asynchronous {@link ng.$http $http}\n * pre-processing of request or postprocessing of responses.\n *\n * These service factories are ordered by request, i.e. they are applied in the same order as the\n * array, on request, but reverse order, on response.\n *\n * {@link ng.$http#interceptors Interceptors detailed info}\n **/\n var interceptorFactories = this.interceptors = [];\n\n this.$get = ['$httpBackend', '$browser', '$cacheFactory', '$rootScope', '$q', '$injector',\n function($httpBackend, $browser, $cacheFactory, $rootScope, $q, $injector) {\n\n var defaultCache = $cacheFactory('$http');\n\n /**\n * Interceptors stored in reverse order. Inner interceptors before outer interceptors.\n * The reversal is needed so that we can build up the interception chain around the\n * server request.\n */\n var reversedInterceptors = [];\n\n forEach(interceptorFactories, function(interceptorFactory) {\n reversedInterceptors.unshift(isString(interceptorFactory)\n ? $injector.get(interceptorFactory) : $injector.invoke(interceptorFactory));\n });\n\n /**\n * @ngdoc service\n * @kind function\n * @name $http\n * @requires ng.$httpBackend\n * @requires $cacheFactory\n * @requires $rootScope\n * @requires $q\n * @requires $injector\n *\n * @description\n * The `$http` service is a core Angular service that facilitates communication with the remote\n * HTTP servers via the browser's [XMLHttpRequest](https://developer.mozilla.org/en/xmlhttprequest)\n * object or via [JSONP](http://en.wikipedia.org/wiki/JSONP).\n *\n * For unit testing applications that use `$http` service, see\n * {@link ngMock.$httpBackend $httpBackend mock}.\n *\n * For a higher level of abstraction, please check out the {@link ngResource.$resource\n * $resource} service.\n *\n * The $http API is based on the {@link ng.$q deferred/promise APIs} exposed by\n * the $q service. While for simple usage patterns this doesn't matter much, for advanced usage\n * it is important to familiarize yourself with these APIs and the guarantees they provide.\n *\n *\n * ## General usage\n * The `$http` service is a function which takes a single argument — a configuration object —\n * that is used to generate an HTTP request and returns a {@link ng.$q promise}\n * with two $http specific methods: `success` and `error`.\n *\n * ```js\n * // Simple GET request example :\n * $http.get('/someUrl').\n * success(function(data, status, headers, config) {\n * // this callback will be called asynchronously\n * // when the response is available\n * }).\n * error(function(data, status, headers, config) {\n * // called asynchronously if an error occurs\n * // or server returns response with an error status.\n * });\n * ```\n *\n * ```js\n * // Simple POST request example (passing data) :\n * $http.post('/someUrl', {msg:'hello word!'}).\n * success(function(data, status, headers, config) {\n * // this callback will be called asynchronously\n * // when the response is available\n * }).\n * error(function(data, status, headers, config) {\n * // called asynchronously if an error occurs\n * // or server returns response with an error status.\n * });\n * ```\n *\n *\n * Since the returned value of calling the $http function is a `promise`, you can also use\n * the `then` method to register callbacks, and these callbacks will receive a single argument –\n * an object representing the response. See the API signature and type info below for more\n * details.\n *\n * A response status code between 200 and 299 is considered a success status and\n * will result in the success callback being called. Note that if the response is a redirect,\n * XMLHttpRequest will transparently follow it, meaning that the error callback will not be\n * called for such responses.\n *\n * ## Writing Unit Tests that use $http\n * When unit testing (using {@link ngMock ngMock}), it is necessary to call\n * {@link ngMock.$httpBackend#flush $httpBackend.flush()} to flush each pending\n * request using trained responses.\n *\n * ```\n * $httpBackend.expectGET(...);\n * $http.get(...);\n * $httpBackend.flush();\n * ```\n *\n * ## Shortcut methods\n *\n * Shortcut methods are also available. All shortcut methods require passing in the URL, and\n * request data must be passed in for POST/PUT requests.\n *\n * ```js\n * $http.get('/someUrl').success(successCallback);\n * $http.post('/someUrl', data).success(successCallback);\n * ```\n *\n * Complete list of shortcut methods:\n *\n * - {@link ng.$http#get $http.get}\n * - {@link ng.$http#head $http.head}\n * - {@link ng.$http#post $http.post}\n * - {@link ng.$http#put $http.put}\n * - {@link ng.$http#delete $http.delete}\n * - {@link ng.$http#jsonp $http.jsonp}\n * - {@link ng.$http#patch $http.patch}\n *\n *\n * ## Setting HTTP Headers\n *\n * The $http service will automatically add certain HTTP headers to all requests. These defaults\n * can be fully configured by accessing the `$httpProvider.defaults.headers` configuration\n * object, which currently contains this default configuration:\n *\n * - `$httpProvider.defaults.headers.common` (headers that are common for all requests):\n * - `Accept: application/json, text/plain, * / *`\n * - `$httpProvider.defaults.headers.post`: (header defaults for POST requests)\n * - `Content-Type: application/json`\n * - `$httpProvider.defaults.headers.put` (header defaults for PUT requests)\n * - `Content-Type: application/json`\n *\n * To add or overwrite these defaults, simply add or remove a property from these configuration\n * objects. To add headers for an HTTP method other than POST or PUT, simply add a new object\n * with the lowercased HTTP method name as the key, e.g.\n * `$httpProvider.defaults.headers.get = { 'My-Header' : 'value' }.\n *\n * The defaults can also be set at runtime via the `$http.defaults` object in the same\n * fashion. For example:\n *\n * ```\n * module.run(function($http) {\n * $http.defaults.headers.common.Authorization = 'Basic YmVlcDpib29w'\n * });\n * ```\n *\n * In addition, you can supply a `headers` property in the config object passed when\n * calling `$http(config)`, which overrides the defaults without changing them globally.\n *\n * To explicitly remove a header automatically added via $httpProvider.defaults.headers on a per request basis,\n * Use the `headers` property, setting the desired header to `undefined`. For example:\n *\n * ```js\n * var req = {\n * method: 'POST',\n * url: 'http://example.com',\n * headers: {\n * 'Content-Type': undefined\n * },\n * data: { test: 'test' }\n * }\n *\n * $http(req).success(function(){...}).error(function(){...});\n * ```\n *\n * ## Transforming Requests and Responses\n *\n * Both requests and responses can be transformed using transformation functions: `transformRequest`\n * and `transformResponse`. These properties can be a single function that returns\n * the transformed value (`function(data, headersGetter, status)`) or an array of such transformation functions,\n * which allows you to `push` or `unshift` a new transformation function into the transformation chain.\n *\n * ### Default Transformations\n *\n * The `$httpProvider` provider and `$http` service expose `defaults.transformRequest` and\n * `defaults.transformResponse` properties. If a request does not provide its own transformations\n * then these will be applied.\n *\n * You can augment or replace the default transformations by modifying these properties by adding to or\n * replacing the array.\n *\n * Angular provides the following default transformations:\n *\n * Request transformations (`$httpProvider.defaults.transformRequest` and `$http.defaults.transformRequest`):\n *\n * - If the `data` property of the request configuration object contains an object, serialize it\n * into JSON format.\n *\n * Response transformations (`$httpProvider.defaults.transformResponse` and `$http.defaults.transformResponse`):\n *\n * - If XSRF prefix is detected, strip it (see Security Considerations section below).\n * - If JSON response is detected, deserialize it using a JSON parser.\n *\n *\n * ### Overriding the Default Transformations Per Request\n *\n * If you wish override the request/response transformations only for a single request then provide\n * `transformRequest` and/or `transformResponse` properties on the configuration object passed\n * into `$http`.\n *\n * Note that if you provide these properties on the config object the default transformations will be\n * overwritten. If you wish to augment the default transformations then you must include them in your\n * local transformation array.\n *\n * The following code demonstrates adding a new response transformation to be run after the default response\n * transformations have been run.\n *\n * ```js\n * function appendTransform(defaults, transform) {\n *\n * // We can't guarantee that the default transformation is an array\n * defaults = angular.isArray(defaults) ? defaults : [defaults];\n *\n * // Append the new transformation to the defaults\n * return defaults.concat(transform);\n * }\n *\n * $http({\n * url: '...',\n * method: 'GET',\n * transformResponse: appendTransform($http.defaults.transformResponse, function(value) {\n * return doTransform(value);\n * })\n * });\n * ```\n *\n *\n * ## Caching\n *\n * To enable caching, set the request configuration `cache` property to `true` (to use default\n * cache) or to a custom cache object (built with {@link ng.$cacheFactory `$cacheFactory`}).\n * When the cache is enabled, `$http` stores the response from the server in the specified\n * cache. The next time the same request is made, the response is served from the cache without\n * sending a request to the server.\n *\n * Note that even if the response is served from cache, delivery of the data is asynchronous in\n * the same way that real requests are.\n *\n * If there are multiple GET requests for the same URL that should be cached using the same\n * cache, but the cache is not populated yet, only one request to the server will be made and\n * the remaining requests will be fulfilled using the response from the first request.\n *\n * You can change the default cache to a new object (built with\n * {@link ng.$cacheFactory `$cacheFactory`}) by updating the\n * {@link ng.$http#defaults `$http.defaults.cache`} property. All requests who set\n * their `cache` property to `true` will now use this cache object.\n *\n * If you set the default cache to `false` then only requests that specify their own custom\n * cache object will be cached.\n *\n * ## Interceptors\n *\n * Before you start creating interceptors, be sure to understand the\n * {@link ng.$q $q and deferred/promise APIs}.\n *\n * For purposes of global error handling, authentication, or any kind of synchronous or\n * asynchronous pre-processing of request or postprocessing of responses, it is desirable to be\n * able to intercept requests before they are handed to the server and\n * responses before they are handed over to the application code that\n * initiated these requests. The interceptors leverage the {@link ng.$q\n * promise APIs} to fulfill this need for both synchronous and asynchronous pre-processing.\n *\n * The interceptors are service factories that are registered with the `$httpProvider` by\n * adding them to the `$httpProvider.interceptors` array. The factory is called and\n * injected with dependencies (if specified) and returns the interceptor.\n *\n * There are two kinds of interceptors (and two kinds of rejection interceptors):\n *\n * * `request`: interceptors get called with a http `config` object. The function is free to\n * modify the `config` object or create a new one. The function needs to return the `config`\n * object directly, or a promise containing the `config` or a new `config` object.\n * * `requestError`: interceptor gets called when a previous interceptor threw an error or\n * resolved with a rejection.\n * * `response`: interceptors get called with http `response` object. The function is free to\n * modify the `response` object or create a new one. The function needs to return the `response`\n * object directly, or as a promise containing the `response` or a new `response` object.\n * * `responseError`: interceptor gets called when a previous interceptor threw an error or\n * resolved with a rejection.\n *\n *\n * ```js\n * // register the interceptor as a service\n * $provide.factory('myHttpInterceptor', function($q, dependency1, dependency2) {\n * return {\n * // optional method\n * 'request': function(config) {\n * // do something on success\n * return config;\n * },\n *\n * // optional method\n * 'requestError': function(rejection) {\n * // do something on error\n * if (canRecover(rejection)) {\n * return responseOrNewPromise\n * }\n * return $q.reject(rejection);\n * },\n *\n *\n *\n * // optional method\n * 'response': function(response) {\n * // do something on success\n * return response;\n * },\n *\n * // optional method\n * 'responseError': function(rejection) {\n * // do something on error\n * if (canRecover(rejection)) {\n * return responseOrNewPromise\n * }\n * return $q.reject(rejection);\n * }\n * };\n * });\n *\n * $httpProvider.interceptors.push('myHttpInterceptor');\n *\n *\n * // alternatively, register the interceptor via an anonymous factory\n * $httpProvider.interceptors.push(function($q, dependency1, dependency2) {\n * return {\n * 'request': function(config) {\n * // same as above\n * },\n *\n * 'response': function(response) {\n * // same as above\n * }\n * };\n * });\n * ```\n *\n * ## Security Considerations\n *\n * When designing web applications, consider security threats from:\n *\n * - [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n * - [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery)\n *\n * Both server and the client must cooperate in order to eliminate these threats. Angular comes\n * pre-configured with strategies that address these issues, but for this to work backend server\n * cooperation is required.\n *\n * ### JSON Vulnerability Protection\n *\n * A [JSON vulnerability](http://haacked.com/archive/2008/11/20/anatomy-of-a-subtle-json-vulnerability.aspx)\n * allows third party website to turn your JSON resource URL into\n * [JSONP](http://en.wikipedia.org/wiki/JSONP) request under some conditions. To\n * counter this your server can prefix all JSON requests with following string `\")]}',\\n\"`.\n * Angular will automatically strip the prefix before processing it as JSON.\n *\n * For example if your server needs to return:\n * ```js\n * ['one','two']\n * ```\n *\n * which is vulnerable to attack, your server can return:\n * ```js\n * )]}',\n * ['one','two']\n * ```\n *\n * Angular will strip the prefix, before processing the JSON.\n *\n *\n * ### Cross Site Request Forgery (XSRF) Protection\n *\n * [XSRF](http://en.wikipedia.org/wiki/Cross-site_request_forgery) is a technique by which\n * an unauthorized site can gain your user's private data. Angular provides a mechanism\n * to counter XSRF. When performing XHR requests, the $http service reads a token from a cookie\n * (by default, `XSRF-TOKEN`) and sets it as an HTTP header (`X-XSRF-TOKEN`). Since only\n * JavaScript that runs on your domain could read the cookie, your server can be assured that\n * the XHR came from JavaScript running on your domain. The header will not be set for\n * cross-domain requests.\n *\n * To take advantage of this, your server needs to set a token in a JavaScript readable session\n * cookie called `XSRF-TOKEN` on the first HTTP GET request. On subsequent XHR requests the\n * server can verify that the cookie matches `X-XSRF-TOKEN` HTTP header, and therefore be sure\n * that only JavaScript running on your domain could have sent the request. The token must be\n * unique for each user and must be verifiable by the server (to prevent the JavaScript from\n * making up its own tokens). We recommend that the token is a digest of your site's\n * authentication cookie with a [salt](https://en.wikipedia.org/wiki/Salt_(cryptography))\n * for added security.\n *\n * The name of the headers can be specified using the xsrfHeaderName and xsrfCookieName\n * properties of either $httpProvider.defaults at config-time, $http.defaults at run-time,\n * or the per-request config object.\n *\n *\n * @param {object} config Object describing the request to be made and how it should be\n * processed. The object has following properties:\n *\n * - **method** – `{string}` – HTTP method (e.g. 'GET', 'POST', etc)\n * - **url** – `{string}` – Absolute or relative URL of the resource that is being requested.\n * - **params** – `{Object.}` – Map of strings or objects which will be turned\n * to `?key1=value1&key2=value2` after the url. If the value is not a string, it will be\n * JSONified.\n * - **data** – `{string|Object}` – Data to be sent as the request message data.\n * - **headers** – `{Object}` – Map of strings or functions which return strings representing\n * HTTP headers to send to the server. If the return value of a function is null, the\n * header will not be sent.\n * - **xsrfHeaderName** – `{string}` – Name of HTTP header to populate with the XSRF token.\n * - **xsrfCookieName** – `{string}` – Name of cookie containing the XSRF token.\n * - **transformRequest** –\n * `{function(data, headersGetter)|Array.}` –\n * transform function or an array of such functions. The transform function takes the http\n * request body and headers and returns its transformed (typically serialized) version.\n * See {@link ng.$http#overriding-the-default-transformations-per-request\n * Overriding the Default Transformations}\n * - **transformResponse** –\n * `{function(data, headersGetter, status)|Array.}` –\n * transform function or an array of such functions. The transform function takes the http\n * response body, headers and status and returns its transformed (typically deserialized) version.\n * See {@link ng.$http#overriding-the-default-transformations-per-request\n * Overriding the Default Transformations}\n * - **cache** – `{boolean|Cache}` – If true, a default $http cache will be used to cache the\n * GET request, otherwise if a cache instance built with\n * {@link ng.$cacheFactory $cacheFactory}, this cache will be used for\n * caching.\n * - **timeout** – `{number|Promise}` – timeout in milliseconds, or {@link ng.$q promise}\n * that should abort the request when resolved.\n * - **withCredentials** - `{boolean}` - whether to set the `withCredentials` flag on the\n * XHR object. See [requests with credentials](https://developer.mozilla.org/docs/Web/HTTP/Access_control_CORS#Requests_with_credentials)\n * for more information.\n * - **responseType** - `{string}` - see\n * [requestType](https://developer.mozilla.org/en-US/docs/DOM/XMLHttpRequest#responseType).\n *\n * @returns {HttpPromise} Returns a {@link ng.$q promise} object with the\n * standard `then` method and two http specific methods: `success` and `error`. The `then`\n * method takes two arguments a success and an error callback which will be called with a\n * response object. The `success` and `error` methods take a single argument - a function that\n * will be called when the request succeeds or fails respectively. The arguments passed into\n * these functions are destructured representation of the response object passed into the\n * `then` method. The response object has these properties:\n *\n * - **data** – `{string|Object}` – The response body transformed with the transform\n * functions.\n * - **status** – `{number}` – HTTP status code of the response.\n * - **headers** – `{function([headerName])}` – Header getter function.\n * - **config** – `{Object}` – The configuration object that was used to generate the request.\n * - **statusText** – `{string}` – HTTP status text of the response.\n *\n * @property {Array.