2026-09-24 20:59 UTC
@dey@mastodon.social @buherator@infosec.place I also think this is happening due to another instance referencing an in image embed with that URL, and akkoma is passing it on to the web browser to try to fetch, which is causing the issue. That http://localhost:3000, btw, is the default port that the mastodon app server works from. 99.5% this is a badly configured mastodon instance + some issue with akkoma.
Replies (1)
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@Viss@mastodon.social 2026-09-24 21:07
@jerry@infosec.exchange @dey@mastodon.social @buherator@infosec.place i've been seeing this popup too - not on here, but elsewhere, which tells me if i went to go to inspector, i would also probably see some kinda 'call to localhost', which firefox is now throwing alerts for. iiiiiiinteresting