Caching issue causing an error loading the Magnific Popup plugin

[tanahel-udem]

The following error sometimes show up making the magnific popup unresponsive. The error shows up on v5.0.0 after refreshing the page. A hard refresh normally solves the issue. The error is present on the sample page: https://cdts.service.canada.ca/app/cls/WET/gcintranet/v5_0_0/cdts/samples/gctoolsmodal-en.html#gctools

 Uncaught TypeError: Cannot read properties of null (reading 'insertBefore')
    at e.yepnope.injectJs (wet-boew.js:1972:7686)
    at wet-boew.js:1972:4461

[ahmad-shahid]

Hello, what steps would I have to take to reproduce this error?

[tanahel-udem]

On Edge version 124.0.2478.97

1. Go to the gctoolsmodal sample.
2. Open the console.
3. Refresh the page multiple times until the error shows up.
4. Once the error is logged try opening the GCTools and notice no popups open.

[ahmad-shahid]

We'll take a look at this as soon as we get the new Edge update.

[chyne]

We're seeing similar issue in 4.0.47 (in Chrome):

TypeError: Cannot read properties of null (reading 'insertBefore')
at e.yepnope.injectJs (wet-boew.js:1947:7686)
at wet-boew.js:1947:4461

In our case we noticed thanks to intermittent reports of DataTables AJAX call not firing. First reports started coming around the time this issue was opened.

[chyne]

I am also able to reproduce this issue on the 4.0.47 page:
https://cdts.service.canada.ca/app/cls/WET/gcintranet/v4_0_47/cdts/samples/gctoolsmodal-en.html#gctools

Chrome 125.0.6422.142

[chyne]

I can even reproduce the issue on the CDTS home page: https://cenw-wscoe.github.io/sgdc-cdts/docs/index-en.html

Uncaught 
TypeError: Cannot read properties of null (reading 'insertBefore')
    at e.yepnope.injectJs (wet-boew.js:1999:7686)
    at wet-boew.js:1999:4461

CDTS/WET fails to load and all WET/CDTS functionality is broken (example, menu doesn't load):

[chyne]

This might be an extension issue. In the WET repo a user reported a similar issue that they traced to VueJS extension. In my case LastPass extension seems to have been the issue. Removing and re-installing it to force an update to a newer version seems to have resolved it for me.