Unable to join/leave a remote room over federation under certain condition

[liyuntao]

Assuming we have two servers over federation, which is local and remote.

There's a local user called A, send an invite to remote user called B. Before B accept/reject the invitation. A kicked B out of the room. Since the kick event will not be sent to remote server, and B is not member of the room currently(after being kicked), a notification bar of invention will always appear on the B's client side (result of replay invite event?) and cannot disappear. Whichever button you clicked would lead to an error.

[richvdh]

B should be able to reject the invite, though he will then need to clear his client cache due to #2181.

[liyuntao]

I've just tried several times in webclient under Chrome's Incognito mode. (Can Incognito mode eliminate the impact of the client-side cache?)

Currently On B's client side, calling leave API will result 200. But the invention notice cannot disappear immediately.

Finally the invention-notice disappeared several minutes, or after I restart the remote server(User B's local server), seems affected by server-side cache.

[richvdh]

I've just tried several times in webclient under Chrome's Incognito mode. (Can Incognito mode eliminate the impact of the client-side cache?)

Not entirely, no. You'd have to reject the invite and then start a new client under incognito mode.

Sounds like a duplicate of #2181

[liyuntao]

Steps to reproduce

• @user01:serverA invite @user02:serverB
• @user01:serverA kick @user02:serverB
• @user02:serverB reject the invention(calling /_matrix/client/api/v1/rooms/:roomId/leave )
• @user02:serverB refresh the page. Invention notice still there.

[richvdh]

refreshing the page doesn't clear the cache.