Bug in Online

mnotermans5114 Community Member Posts: 916 ☆ Roadie ☆

Adding this to support too, but for others to know. Since today these error messages prevent drag-and-drop questions to work properly in the latest Firefox.

Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user’s experience. For more help http://xhr.spec.whatwg.org/ jquery-1.10.2.min.js:6:17960
Use of captureEvents() is deprecated. To upgrade your code, use the DOM 2 addEventListener() method. For more help http://developer.mozilla.org/en/docs/DOM:element.addEventListener trivantis-drag.js:7:4477

The first one i did report before. Hope someone fixes that. Not too big an issue though. The second one about the addEventListener in the Trivantis-drag.js prevents the drag and drop questions to work properly.

Kind regards,


  • raungnaing
    raungnaing Community Member Posts: 35
    Hi Math,

    I did a quick test on drag-and-drop question using Firefox 62.0.3 (64 bit) and seems to work fine. Can you give us more details on how it is not working, preferably a sample title? Also, if you can include the publish options you used (such as Seamless Play, Scale content) that will be great.

    Usually, "deprecated" message alone does not prevent the code from working. However, we need to look into the captureEvents calls.


  • mnotermans5114
    mnotermans5114 Community Member Posts: 916 ☆ Roadie ☆
    Hi Robert, indeed it did work after all... i probably blamed the captureEvents call to soon. Nevertheless its  something to watch in updates.