Requirements for patch url

[andrewbaxter]

The example shows e.g. localhost:8080 but I'm not sure what domain to expect (browser extension). There are three points that weren't clear to me:

1. AFAICT looking elsewhere it can be a relative url, is there a reason all the examples use an absolute url? Without familiarity of the spec, explaining this in the method documentation may be helpful.
2. Is this supposed to be the address of the specific source map, or the directory containing the source map?
3. The example shows let sourcemap = mapper.map_v3(false); but never uses sourcemap. I assume this must be written to a file matching some pattern related to the address.

FWIW a method like auto_patch() that modified the file, generated the source map, and wrote it to the correct location relative to the wasm file would be great.

Thanks a lot for working on this! I particularly appreciate that it can be used as a module, I'm doing the same with bindgen atm to get around frequent version mismatch issues so that means I can just stick this on the end.

[andrewbaxter]

Hmm okay, mapper.patch("") didn't work for me. It worked when I did mapper.patch("popup_bg.wasm.map") though.

The example shows mapper.patch("http://localhost:8080") but is that correct? Without context I assumed the implication is that that's the base url, and the map would be at e.g. localhost:8080/something.wasm.map, but it seems like per the above that's wrong unless relative urls are interpreted differently from absolute urls.