[whatwg] BroadcastChannel memory leak

When is it safe for a user agent to garbage collect a BroadcastChannel instance?

http://www.whatwg.org/specs/web-apps/current-work/multipage/web-messaging.html#broadcasting-to-other-browsing-contexts

Given that another document might create a new BroadcastChannel
instance at any time, the |message| event of the object might fire any
time its responsible document is fully active.  For web application
that have long-lived documents, the BroadcastChannel might not be
eligible for garbage collection for a long time.

Proposal: Add a |close| method to the BroadcastChannel interface
similar to the |close| method on MessagePort.  The |close| method
would just neuter the instance of the channel and prevent it from
receiving further messages.

Adam

Received on Saturday, 24 May 2014 00:33:06 UTC