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BroadcastChannel: cleanup routers when closing tabs (#38046)

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BroadcastChannel uses 2 hash maps in the constellation and they were not
kept properly in sync. Also fixed a logic error where
`Option<HashMap<...>>` was not considered empty when being `None`.

Testing: These warnings should not happen anymore:
[2025-07-14T03:54:22Z WARN constellation::constellation] No sender for
broadcast router: (4,1)

[2025-07-14T03:33:59Z WARN constellation_traits::structured_data]
Attempt to broadcast structured serialized data including ImageBitmap
(should never happen).
[2025-07-14T03:33:59Z WARN constellation_traits::structured_data]
Attempt to broadcast structured serialized data including MessagePort
(should never happen).
[2025-07-14T03:33:59Z WARN constellation_traits::structured_data]
Attempt to broadcast structured serialized data including
OffscreenCanvas (should never happen).
[2025-07-14T03:33:59Z WARN constellation_traits::structured_data]
Attempt to broadcast structured serialized data including ReadableStream
(should never happen).
[2025-07-14T03:33:59Z WARN constellation_traits::structured_data]
Attempt to broadcast structured serialized data including WritableStream
(should never happen).
[2025-07-14T03:33:59Z WARN constellation_traits::structured_data]
Attempt to broadcast structured serialized data including
TransformStream (should never happen).

Signed-off-by: webbeef <me@webbeef.org>
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webbeef 2025-07-14 08:43:45 -07:00 • committed by GitHub
parent 5bc3c3088a
commit 677184a0e6
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2 changed files with 7 additions and 1 deletions
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6
components/constellation/constellation.rs
View file

@ -2000,6 +2000,12 @@ where
if self.broadcast_routers.remove(&router_id).is_none() {
warn!("Attempt to remove unknown broadcast-channel router.");
}
// Also remove the router_id from the broadcast_channels list.
for channels in self.broadcast_channels.values_mut() {
for routers in channels.values_mut() {
routers.retain(|router| router != &router_id);
}
}
}
/// Add a new broadcast router.