@Oneric explained:
> Spec says query params must be included in the signature; Mastodon
> being Mastodon used to always exclude it though and for
> compatibility everyone followed this. At some point GtS decided to
> follow spec instead which caused interop issues, but succeeded in
> getting Mastodon (and others like *oma) to accept incoming requests
> with (and also still without) query params though outgoing requests
> remaing query-param-free. Some still only accept query-param-less
> requests though and GtS uses a retry mechanism to resend any request
> failing with 401 with an query-parama-less signature once. (Also
> see:
> https://docs.gotosocial.org/en/latest/federation/http_signatures/ )
>
> So for incoming requests both versions need to be checked. For
> outgoing requests, unless you want to jump through retry hoops like
> GtS, omitting query-params is the safer bet for now (presumably this
> will only change if Mastodon ever decides to send out requests
> signed with query params)
dakkar
58c0ac6c89