In Lightning Communities does the new page level feature to 'Edit Meta Tags' work for IE 11? When we add simple meta tags we get the following error, but all other browsers worked:

Action failed: forceCommunity:seoAssistant$controller$init [Object doesn't support property or method 'forEach'] Callback failed: serviceComponent://ui.comm.runtime.components.aura.components.siteforce.controller.PubliclyCacheableComponentLoaderController/ACTION$getPageComponent

  • 1
    Note: <3% of the Internet is now using IE 11 or lower. It's time to stop testing in IE. – sfdcfox Apr 20 '18 at 19:03

IE 11 is not supported in lightning experience. I would not expect any new features, or even the features which are currently supported, to work with this browser. The official recommendation is to use another browser, or have users use classic when in IE 11.

Support for Internet Explorer 11 to access Lightning Experience is retiring beginning in Summer ’16.

From a technical perspective, its due to the forEach function for some list being missing - it's likely not supported by the browser.

If you have control over the scripts loaded on this page, and assuming its a NodeList which is missing the forEach, you can try to add this poly-fill to the page, in order to prevent this error from occurring:

if (window.NodeList && !NodeList.prototype.forEach) {
    NodeList.prototype.forEach = function (callback, thisArg) {
        thisArg = thisArg || window;
        for (var i = 0; i < this.length; i++) {
            callback.call(thisArg, this[i], i, this);

You might need a different target object, but the idea is the same.

| improve this answer | |
  • We were able to get it working with that code snippet. Thanks! – KickerKeeper Apr 23 '18 at 19:55

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.