Collapsiblock Make index.umd.js local

Can you expand on why you think this is a GDPR issue?

External resource throwing a 503 error and blocking all requests.
This causes over 20 second hang to render every single screen on all drupal sites using this module.

https://unpkg.com/slide-element@2/dist/index.umd.js

patch against 4.x dev branch including external js to remove 20-30 error timeout and page draw holds.

I'm not comfortable with including the package directly in the module. I've taken a lead from the Webform module and kept the CDN as a fallback while allowing people to install the library in their project in an appropriate location. Thanks for your nudges to get this done.

Due to this changes ExistingSiteJavascript test are failing, its seems that libraries is not available during test.
Note: I have not downloaded the lib locally.

Thanks for calling that out, shouldn't be too difficult to solve, I might have time this weekend but I'm very happy for someone else to take a look at it too. I'm out or I would open a new ticket for this.

Created child issue for the same.