For subsites, the path to the library doesn't take into account the base path.
eg.:
My site is located at http://myhost.com/mysubsite/web
The library path in the UI is '/libraries/lazysizes'
So the library should be located at http://myhost.com/mysubsite/web/libraries/lazysizes/lazysizes.min.js
Instead, I get a message that http://myhost.com/libraries/lazysizes/lazysizes.min.js is not found.
I could of course set the path manually, but then the path to the library would be different on local vs live versions of the same site. That would be bad practice.
Solution: include the base path in the settings
Active
3.0
Code
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
The current patch did not account for manually entered URLs in config.
We must cover both absolute library URLs and relative URLs with base path prefixed manually already.
Applied same changes as in 🐛 Library path wrong for subsites (4.x) Active .