Occasional AngularJS error when directive is compiling - angularjs

Question

I have an AngularJS directive that renders into a custom social share widget. Out of about 10,000 page views per day, around 1 or 2 of those times, Angular errors out after starting to compile the directive. This leaves the raw HTML partial in the DOM, visible to the user.
I only came to know of this error because it was reported by several users. I can't reproduce it, but I have devised some informative logging which shows that it is occurring.
Each time this has occurred:
Browser is always Chrome
OS is Mac or Windows
Angular starts the compile phase, but fails before starting post link
Angular reports an error during the compile phase, but the 'exception' object passed to the '$exceptionHandler' service is always null.
No other JavaScript errors are reported
This error is occurring for some of the same IPs across multiple days.
Has anyone out there had a similar issue?
Edit
Here's my code...
JavaScript:
(function () {
angular.module('common', []);
angular.module('common')
.filter('encodeURIComponent', function () {
return window.encodeURIComponent;
});
function configure($provide) {
// Pass all Angular errors to Loggly
$provide.decorator("$exceptionHandler", function ($delegate) {
return function exceptionHandlerDecorator(exception, cause) {
$delegate(exception, cause);
_LTracker.push({
'error': 'angularError',
'app': 'shareCounts',
'err': exception,
'element': cause
});
};
});
}
angular.module('common')
.config(['$provide', configure]);
function configure($provide) {
// Defines available share options as well as behaviors of the share popup windows
function shareLinksConfig() {
return {
'facebook': {
width: 670,
height: 200,
urlBase: 'https://www.facebook.com/sharer/sharer.php?',
shareParamPre: 'u=',
msgParamPre: '',
mediaParamPre: '',
addParams: ''
},
'twitter': {
width: 550,
height: 420,
urlBase: 'https://twitter.com/intent/tweet?',
shareParamPre: 'url=',
msgParamPre: '&text=',
mediaParamPre: ''
},
'googlePlus': {
width: 600,
height: 600,
urlBase: 'https://plus.google.com/share?',
shareParamPre: 'url=',
msgParamPre: '',
mediaParamPre: '',
addParams: ''
},
'linkedIn': {
width: 600,
height: 400,
urlBase: 'http://www.linkedin.com/shareArticle?',
shareParamPre: 'url=',
msgParamPre: '',
mediaParamPre: '',
addParams: '&mini=true'
},
'pinterest': {
width: 750,
height: 320,
urlBase: 'https://www.pinterest.com/pin/create/button/?',
shareParamPre: 'url=',
msgParamPre: '&description=',
mediaParamPre: '&media=',
addParams: ''
},
'email': {
width: 0,
height: 0,
urlBase: '',
shareParamPre: '',
msgParamPre: '',
mediaParamPre: '',
addParams: ''
}
};
}
$provide.factory('shareLinksConfig', shareLinksConfig);
}
angular.module('common')
.config(['$provide', configure]);
function ShareLinksController($scope, shareLinksService) {
sendToLoggly.push("A \"ShareLinksController\" started constructing...");
sendToLoggly.push("...and the $scope is typeof...");
sendToLoggly.push(typeof $scope);
var vm = this;
vm.share = function ($event, shareVia) {
if (shareVia !== 'email') {
$event.preventDefault();
// console.log($scope.mediaUrl);
shareLinksService.openPopUp(shareVia, $scope.shareUrl, $scope.shareMsg, $scope.mediaUrl);
}
// Tell Google Analytics share link was clicked
shareLinksService.pushGAEvent($scope.analyticsLocation, shareVia, $scope.shareUrl);
};
$scope.shareLinksShown = true; // Initialized to true, but then this gets set to false in the directive's link function if slideIn is true
vm.toggle = function ($event) {
$event.preventDefault();
$scope.shareLinksShown = !$scope.shareLinksShown;
};
sendToLoggly.push("...and controller finished constructing.");
}
angular.module('common')
.controller('ShareLinksController', ["$scope", "shareLinksService",
ShareLinksController]);
function fuShareLinks($http, shareLinksConfig, testRenderingService) {
function compile() {
sendToLoggly.push("A \"fuShareLinks\" directive started compiling...");
testRenderingService.testShareCounts();
return function postLink(scope) {
sendToLoggly.push("A \"fuShareLinks\" directive started postLinking...");
function Settings(shareVia, slideInDir, slideToggleLabel, colorized, showCounts) {
var self = this,
prop,
splitArray;
/* --------
ShareVia
--------
Comma separated list of ways to share
Accepted options are: 'facebook, twitter, googlePlus, linkedIn, pinterest, email' */
// Copy the properties from the config and initialize to false
self.shareVia = {};
for (prop in shareLinksConfig) {
if (shareLinksConfig.hasOwnProperty(prop)) {
self.shareVia[prop] = false;
}
}
if (typeof shareVia === 'string') {
splitArray = shareVia.split(',');
} else {
splitArray = [];
}
// Check each value of splitArray, if it is in possible share options,
// set that option to true.
angular.forEach(splitArray, function (value) {
// Clean up 'value' a bit by removing spaces
value = value.trim();
if (value.length > 0) {
if (self.shareVia.hasOwnProperty(value)) {
self.shareVia[value] = true;
}
}
});
/* --------
Slide In
--------
The slide-in functionality is activated by passing a value to 'slideInDir'.
Accepted values are 'left' or 'down' (case insensitive)
The 'slideToggleLabel' can be any string, if empty, it defaults to 'Share'. */
self.slideIn = {
direction: '',
label: 'Share'
};
if (typeof slideInDir === 'string') {
slideInDir = slideInDir.toUpperCase();
}
switch (slideInDir) {
case 'LEFT':
self.slideIn.direction = 'left';
break;
case 'DOWN':
self.slideIn.direction = 'down';
break;
}
if (typeof slideToggleLabel === 'string') {
self.slideIn.label = slideToggleLabel;
}
/* ---------
Colorized
---------
'true', 'yes', or 'colorized' (case insensitive) -- results in true
defaults to false */
self.colorized = false;
if (typeof colorized === 'string') {
colorized = colorized.toUpperCase();
}
switch (colorized) {
case 'TRUE':
self.colorized = true;
break;
case 'YES':
self.colorized = true;
break;
case 'COLORIZED':
self.colorized = true;
break;
}
/* -----------
Show Counts
-----------
'true', 'yes', or 'show' (case insensitive) -- results in true
defaults to false */
self.showCounts = false;
if (typeof showCounts === 'string') {
showCounts = showCounts.toUpperCase();
}
switch (showCounts) {
case 'TRUE':
self.showCounts = true;
break;
case 'YES':
self.showCounts = true;
break;
case 'SHOW':
self.showCounts = true;
break;
}
}
scope.settings = new Settings(
scope.shareVia,
scope.slideInDir,
scope.slideToggleLabel,
scope.colorized,
scope.showCounts
);
// Initally hide the share links, if they are set to toggle
if (scope.settings.slideIn.direction !== '') {
scope.shareLinksShown = false;
}
function ShareCounts(shareVia) {
var self = this;
angular.forEach(shareVia, function (value, name) {
self[name] = 0;
});
$http.get(
'/local/social-share-counts/?url=' +
encodeURIComponent(scope.shareUrl)
).success(function (data) {
/* Check for share counts in the returned data.
Must use consistent naming for the social networks
from shareLinksConfig properties all the way to the
JSON data containting the counts.
Expected JSON format:
{
"twitter": {
"count": 42,
"updated": "2015-03-25T15:13:48.355422"
},
"facebook": {
"count": 120,
"updated": "2015-03-25T15:13:47.470778"
}
}
*/
angular.forEach(shareVia, function (value, name) {
if (data[name] && data[name]["count"]) {
self[name] = data[name]["count"];
}
});
}).error(function (data, status) {
sendToLoggly.push("HTTP Response " + status);
});
}
// If showing share counts, get the counts from the specified networks
if (scope.settings.showCounts) {
scope.shareCounts = new ShareCounts(scope.settings.shareVia);
}
sendToLoggly.push("...and directive finished postLinking.");
};
sendToLoggly.push("...and directive finished compiling.");
}
return {
restrict: 'E',
scope: {
shareVia: '#',
shareUrl: '#',
shareMsg: '#',
mediaUrl: '#',
analyticsLocation: '#',
slideInDir: '#',
slideToggleLabel: '#',
colorized: '#',
showCounts: '#'
},
controller: 'ShareLinksController',
controllerAs: 'shrLnksCtrl',
templateUrl: '/angular-partials/common.share-links.html',
compile: compile
};
}
angular.module('common')
.directive('fuShareLinks', ['$http', 'shareLinksConfig', 'testRenderingService', fuShareLinks])
.factory('testRenderingService', function () {
var timerId = null;
function evalShareRender() {
var renderError = (-1 < $('em.ng-binding')
.text()
.indexOf('{{'));
if (renderError) {
console.error('RENDER ERROR');
_LTracker.push({
'error': 'rendering',
'app': 'shareCounts',
'statusMsgs': sendToLoggly,
'userAgent': navigator.userAgent
});
}
}
return {
testShareCounts: function () {
if (!timerId) {
timerId = window.setTimeout(evalShareRender, 5000);
}
}
};
});
function shareLinksService(shareLinksConfig) {
function openPopUp(shareVia, shareUrl, shareMsg, mediaUrl) {
var width,
height,
urlBase,
shareParamPre,
msgParamPre,
mediaParamPre,
addParams,
popUpUrl;
width = shareLinksConfig[shareVia].width;
height = shareLinksConfig[shareVia].height;
urlBase = shareLinksConfig[shareVia].urlBase;
shareParamPre = shareLinksConfig[shareVia].shareParamPre;
msgParamPre = shareLinksConfig[shareVia].msgParamPre;
mediaParamPre = shareLinksConfig[shareVia].mediaParamPre;
addParams = shareLinksConfig[shareVia].addParams;
popUpUrl = encodeURI(urlBase);
popUpUrl += encodeURI(shareParamPre);
popUpUrl += encodeURIComponent(shareUrl);
if (msgParamPre && shareMsg) {
popUpUrl += encodeURI(msgParamPre);
popUpUrl += encodeURIComponent(shareMsg);
}
if (mediaParamPre && mediaUrl) {
popUpUrl += encodeURI(mediaParamPre);
popUpUrl += encodeURIComponent(mediaUrl);
}
popUpUrl += encodeURI(addParams);
// Open the social share window
window.open(popUpUrl, '_blank', 'width=' + width + ',height=' + height);
}
function pushGAEvent(analyticsLocation, shareVia, shareUrl) {
function capitalize(firstLetter) {
return firstLetter.toUpperCase();
}
var gaEventAction = shareVia;
gaEventAction = gaEventAction.replace(/^[a-z]/, capitalize);
gaEventAction += ' - Clicked';
_gaq.push([
'_trackEvent',
analyticsLocation + ' - SocialShare',
gaEventAction,
shareUrl
]);
}
return {
openPopUp: openPopUp,
pushGAEvent: pushGAEvent
};
}
angular.module('common')
.factory('shareLinksService', ['shareLinksConfig', shareLinksService]);
}());
HTML:
<div class="share-links-wrapper" ng-class="{ 'right': settings.slideIn.direction === 'left', 'center': settings.slideIn.direction === 'down' }" ng-cloak>
<a href="#" class="toggle" ng-show="settings.slideIn.direction != ''" ng-click="shrLnksCtrl.toggle($event)">
<i class="fuicon-share"></i>{{ settings.slideIn.label }}
</a>
<div class="share-links" ng-class="{ 'share-links-colorized': settings.colorized }" ng-show="shareLinksShown">
<ul>
<li ng-show="settings.shareVia.facebook">
<a href="#" ng-click="shrLnksCtrl.share($event, 'facebook')"
class="fuicon-hex-facebook">
</a>
<em ng-show="settings.showCounts && shareCounts.facebook > 0">
{{ shareCounts.facebook }}
</em>
</li>
<li ng-show="settings.shareVia.twitter">
<a href="#" ng-click="shrLnksCtrl.share($event, 'twitter')"
class="fuicon-hex-twitter">
</a>
<em ng-show="settings.showCounts && shareCounts.twitter > 0">
{{ shareCounts.twitter }}
</em>
</li>
<li ng-show="settings.shareVia.googlePlus">
<a href="#" ng-click="shrLnksCtrl.share($event, 'googlePlus')"
class="fuicon-hex-googleplus">
</a>
<em ng-show="settings.showCounts && shareCounts.googlePlus > 0">
{{ shareCounts.googlePlus }}
</em>
</li>
<li ng-show="settings.shareVia.linkedIn">
<a href="#" ng-click="shrLnksCtrl.share($event, 'linkedIn')"
class="fuicon-hex-linkedin">
</a>
<em ng-show="settings.showCounts && shareCounts.linkedIn > 0">
{{ shareCounts.linkedIn }}
</em>
</li>
<li ng-show="settings.shareVia.pinterest && mediaUrl">
<a href="#" ng-click="shrLnksCtrl.share($event, 'pinterest')"
class="fuicon-hex-pinterest">
</a>
<em ng-show="settings.showCounts && shareCounts.pinterest > 0">
{{ shareCounts.pinterest }}
</em>
</li>
<li ng-show="settings.shareVia.email">
<a href="mailto:?subject={{ shareMsg | encodeURIComponent }}
&body={{ shareUrl | encodeURIComponent }}"
ng-click="shrLnksCtrl.share($event, 'email')"
class="fuicon-hex-email">
</a>
</li>
</ul>
</div>
</div>

Answer 1

Not had such an issue, but as its so infrequent could you make it reload the page?
Also, do you know about ng-cloak? it can be useful to hide the raw stuff :)
Could it be a race condition?