Collapse doesn't work with bundled version of bootstrap

[ihorbond]

Hi, I've recently switched to bundled (bootstrap.bundle.min.js) version of bootstrap (to have popper.js included among other things) and noticed my collapse panels stopped working. They work again if I switch to unbundled, please see CodePen

• Tried v4.0 and v4.5
• Windows 10 Home v1909
• Chrome Version 83.0.4103.116 (Official Build) (64-bit)
• CodePen: https://codepen.io/ihorbond/pen/MWKrMXX

[Johann-S]

Hi @ihorbond

I'm unable to reproduce it see: https://codepen.io/Johann-S/pen/gOPvRKr

BTW your <script> should be at the end of your body

[ihorbond]

@Johann-S hmm looks like the integrity check in my <script> tag was the culprit on CodePen. but in my project I've downloaded the library and using it locally and script is in the end of the body..

[Johann-S]

so there is something else, BTW our docs use the bundle version

[nikduvall]

I am also having an issue where collapse stopped working. Added details to Issue #28807 as my problem seemed to be closer aligned to that issue.

[ihorbond]

Thanks, I'll try to investigate more on my end and will open a new issue if there is one. It's just super bizarre that if I change that same line of code to non bundled bootstrap collapse works as expected. What else could be at play here ? Some other conflicting library ?

[lapak10]

@ihorbond Have you tried using any CDN provider?

[mdo]

Check your integrity values and what not. I removed them all and it works.