Hi,
I want to create a child process in
toolkit/components/aboutmemory/tests/test_memoryReporters.xul, so I
can test the cross-process memory reporting.
In theory, this is as easy as <iframe mozbrowser remote> or <browser
remote>, or something like that. But I've tried about 80 different
variations on these, and I cannot get a child process.
This is the closest I've got:
<html:iframe id="browser" src="about:about" mozbrowser="true" remote="true"/>
AIUI, the |html:| prefix and the |="true"| attribute values are
necessary because this is a XUL file and hence XML. My <window>
element looks like this:
<window title="Memory reporter"
xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
xmlns:html="http://www.w3.org/1999/xhtml";>
With the above code I do get an iframe that loads about:about, which
is good. But there's no child process created, and when I inspect the
|remote| attribute of the iframe it is |undefined|, as if something
prevented it from being set to true.
What am I doing wrong? The docs
(https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe and
https://developer.mozilla.org/en-US/docs/WebAPI/Browser?redirectlocale=en-US&redirectslug=DOM%2FUsing_the_Browser_API
and https://developer.mozilla.org/en-US/docs/XUL/iframe) make it
sounds like this should be easy.
Nick
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