Summary

If you open a page in Structure mode, Django CMS will load the 'structure HTML' first and use an XHR call to fetch the actual contents of the page. When you close the Structure mode the page source is replaced with the actual contents of the paged, fetched earlier with the XHR call. All scripts on the page are loaded, but in sync instead of in order of appearance. This will cause libraries not being loaded in time.

Expected behaviour

The script-tags should be loaded / executed in order of appearance. E.g. If you have a jQuery script-tag and a jQuery plugin tag, its important to load jQuery before the plugin otherwise you'll get a jQuery is not defined.

Actual behaviour

The script-tags are loaded synchronously and executed once loaded, but not in order of appearance. E.g. the jQuery plugin can't find jQuery.

Environment

• Python version: All (Javascript issue)
• Django version: All (Javascript issue)
• django CMS version: 3.5.x and 3.6.x