Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: fe933794faba09e65adac61b0f862560186a8247
https://github.com/WebKit/WebKit/commit/fe933794faba09e65adac61b0f862560186a8247
Author: Ahmad Saleem <[email protected]>
Date: 2026-08-02 (Sun, 02 Aug 2026)
Changed paths:
M Source/WebCore/xml/XMLHttpRequest.cpp
Log Message:
-----------
XMLHttpRequest::memoryCost() ignores binary response data
https://bugs.webkit.org/show_bug.cgi?id=320713
rdar://183699140
Reviewed by Chris Dumez.
memoryCost() only counted m_responseBuilder, the decoded-text buffer.
"arraybuffer" and "blob" responses accumulate into m_binaryResponseBuilder
instead, so they reported 0 to Heap::reportExtraMemoryAllocated() at DONE
and applied no GC pressure. Sum both buffers; didReceiveData() populates
exactly one of them per response type, so nothing is double counted.
No new tests, as memoryCost() has no web-exposed observable -- its only
consumer is a JSC GC heuristic.
* Source/WebCore/xml/XMLHttpRequest.cpp:
(WebCore::XMLHttpRequest::memoryCost const):
Canonical link: https://commits.webkit.org/318421@main
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