In recent weeks (October/November 2026), I’ve found multiple examples where SCORM courses suddenly encountered issues where some users were claiming they completed the content, but their completion wasn’t registered. The course had been functioning correctly and nothing had changed in the course or the SCORM file. In fairness to Docebo, these courses lacked the completion screen that Docebo recommends in this KB article. However, in this case, the organization lacks access to the original SCORM files to make that change AND it was working just fine previously.
Turns out both Microsoft Edge and Google Chrome browsers issued an update in October 2026 that deprecated the JavaScript unload event. This one deprecation is blocking these courses from logging any activity in these browsers (if you check the Training Material reports, users will show the same Start and End times no matter how long they are in the training material). This also explains how some users were still successfully completing the course (they were using another browser, such as Firefox, that wasn’t blocking this...yet). When I disabled the deprecation in Edge, the course went back to completing just fine.
I have an active ticket with Docebo Support right now as the documentation does say that sites can build in an exemption to this deprecation - so hopefully it can be resolved soon enough. Just thought I’d share this and my findings now in case anyone else was recently encountering this issue and wondering what is going on.