In an Atlassian connect plugin, we've this code

$(document).ready(function() {
    AP.require('request', function(request) {

which works fine, but sometimes and randomly we receive the error message in the object

AP is not defined

And this is not related to a specific browser or OS

Any idea of why this happens?

Any suggestion on what to investigate?




That's the head section of my web panel

<html lang="en">
        <script src="//"></script>
        <script src="//"></script>
        <link rel="stylesheet" href="//" media="all">
        <link rel="stylesheet" href="mycustom.css">
        <script src="mycustom.js"></script>

and that's the last part of the body

<!-- Stop the loading addon message -->
    <script id="connect-loader" data-options="sizeToParent:true;">
        (function() {
            var getUrlParam = function(param) {
                var codedParam = (new RegExp(param + '=([^&]*)')).exec([1];
                return decodeURIComponent(codedParam);

            var baseUrl = getUrlParam('xdm_e') + getUrlParam('cp');
            var options = document.getElementById('connect-loader').getAttribute('data-options');
            var script = document.createElement("script");
            script.src = baseUrl + '/atlassian-connect/all.js';

            if (options) {
                script.setAttribute('data-options', options);


as described in the Atlassian dev documentation

2 answers

This widget could not be displayed.

AP is defined in "integration bridge" all.js loaded from your host JIRA:


I guess that all.js is not loaded (which should not happen) or maybe your load your custom JS file before all.js.

all.js is loaded before my custom JS because the code works fine, 

and my JS is loaded at last in my web panel

but it seems that sometime (and I don't know when and why) 

AP is not available (i.e. all.js is not loaded?)

Make sure you do no have async attribute in script tags.

This widget could not be displayed.

I am running into this exact same issue with loading all.js from our JIRA instance. The script loader is absolutely doing the right thing, we've used it forever for our Confluence add-on and I've verified that it's present and loaded in the DOM. It's all.js that has an issue when it tries to execute.

I'm getting an Uncaught TypeError: Object.defineProperty called on a non-object, and AP fails to be created or made available to our add-in

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