Matrix invite Link get reported as InvalidUrlException

[UnlimitedCookies]

I am unsure whether they are valid URIs, but the check fails for links like https://matrix.to/#/#roomname:matrix.my-cool-server.com with an InvalidUrlException.

[UnlimitedCookies]

(this is probably an upstream bug, but I am unsure where to report upstream)

[UnlimitedCookies]

It seems like matrix is using non-compliant URIs (matrix-org/matrix.to#17)
Is there a way to remove this one error (like writing an <-- #[allow(InvalidUrlException)] --> in the line above)?

[LaurentRDC]

If matrix uses non-compliant URIs, there nothing to do currently.

Good news though, Hakyll considers URIs to be strings at first, which are then parsed. If someone was really keen on supporting matrix URIs, then Hakyll could be extended to either:

1. Have a special rule to parse matrix URIs (modifying this function);
2. As you mention, add a mechanism to skip the check on certain URIs.

Personally, I am much more partial to solution 1 (handling matrix URIs in a special case). It seems the least disruptive and the most in-keeping with the spirit of ensuring live links.

I am happy to review pull requests.

In the meantime, you can skip checking of external uris using the mysite check --internal-links command.