In chat, a oneboxed question/answer goofs out with a bad link when it's within a oneboxed message
60472
Oneboxing a onebox from a different chat server generates a weird URL
102901
How to handle link rot and broken links?
73780
Going to any question on the site brings an error page
121819
Show warning or 404 when following permalink to deleted answer
90318
Trying to suspend someone from chat for 0.02 hours results in an error page
153307
3D Printing posts do not onebox in chat
79616
bug in user image in chat
48076
Questions link almost unreadable when active on meta
107324
Ampersands in hyperlinks cause W3C validation to fail
94132
I can enter U+0008 (backspace character) into a chat message
125430
Wikipedia onebox is dropping random text
123916
Chat suspension message is unreadable in rooms parented to a beta site
152922
Can we do something about misleading message and link on locked questions?
16708
Temporarily deleted answer missing from asker's inbox
67940
Flags in chat are defective by design
63733
Deleted chat messages still show links if they refer to another message
142087
Should I flag answers which contain only a link as "not an answer"?