Svelte.dev JavaScript Problem

[Tritus]

https://svelte.dev/
+ several subpages

... loading, then error from JavaScript problem (but only with Palemoon, latest version, no addons active, not occurring in any other major browser) :

Yikes!
500: __inject_styles is not a function
Please try reloading the page.
If the error persists, please drop by Discord chatroom and let us know, or raise an issue on GitHub. Thanks!

hope this helps improving Palemoon

[Moonchild]

If that's an http error 500, then that is (by definition) a server-side error.
Perhaps their server code chokes on "unknown browser"?

[RealityRipple]

It's not a HTTP error, it's another script relying on import. The script checks to see if the import succeed or failed by calling the function defined in the imported script. It fails, they show that message. I have no idea why they chose 500 for their error message. It's also already been reported on their GitHub: https://github.com/sveltejs/svelte/issues/6402.

[Moonchild]

Just to keep things not confusing, eh?

ftr I added a reply to that issue the dev chose to close unsolved.