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Auto merge of #17665 - jdm:postmessage-panic, r=KiChjang

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Avoid panic when postMessage targets closed window.

- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #17664
- [X] There are tests for these changes

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This commit is contained in:
bors-servo 2017-07-11 12:28:33 -07:00 • committed by GitHub
commit 2a575acabe
3 changed files with 26 additions and 1 deletions
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3
components/script/dom/window.rs
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@ -2000,7 +2000,8 @@ impl Runnable for PostMessageHandler {
impl Window {
pub fn post_message(&self, origin: Option<ImmutableOrigin>, data: StructuredCloneData) {
let runnable = PostMessageHandler::new(self, origin, data);
let msg = CommonScriptMsg::RunnableMsg(ScriptThreadEventCategory::DomEvent, box runnable);
let runnable = self.get_runnable_wrapper().wrap_runnable(box runnable);
let msg = CommonScriptMsg::RunnableMsg(ScriptThreadEventCategory::DomEvent, runnable);
// TODO(#12718): Use the "posted message task source".
let _ = self.script_chan.send(msg);
}