NEW251353
UIProcess API WKPageGetContentsAsMHTMLData does not complete callback if MHTML flag is OFF 
https://bugs.webkit.org/show_bug.cgi?id=251353
Summary UIProcess API WKPageGetContentsAsMHTMLData does not complete callback if MHTM...
kiran
Reported 2023-01-30 05:06:53 PST
In file API/C/WKPage.cpp method [WKPageGetContentsAsMHTMLData](https://github.com/WebKit/WebKit/blob/0c8fb49c7a40115abe543963829eb8268b96d048/Source/WebKit/UIProcess/API/C/WKPage.cpp#L2673) does not complete callback if MHTML build (private) flag is OFF. To add, it appears like [consumers](https://github.com/search?l=C%2B%2B&q=WKPageGetContentsAsMHTMLData&type=Code) of WKPageGetContentsAsMHTMLData, might crash if this callback gets invoked with null values. Most of them are not checking WKErrorRef and doing a reinterpret_cast of WKDataRef.
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Radar WebKit Bug Importer
Comment 1 2023-02-06 05:07:20 PST
<rdar://problem/105078481>
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