Bug 255442 – Page.cpp data: URL style sheet fast path is incorrect

• Status: NEW
• Component: DOM

[Anne van Kesteren]

In particular:

* It doesn't use the same base64 decoding options.
* It looks like it's not case-insensitive.

It should probably reuse code from DataURLDecoder.cpp or invoke that directly.

[Karl Dubost]

I guess this is about: https://searchfox.org/wubkat/rev/82caf34be7c823fc4fddd90cc167a6315bffebfd/Source/WebCore/page/Page.cpp#2181-2209

And to use
https://searchfox.org/wubkat/source/Source/WebCore/platform/network/DataURLDecoder.cpp

[Radar WebKit Bug Importer]

<rdar://problem/108116260>

[Karl Dubost]

Anne, 
this part is surprising too. 
https://searchfox.org/wubkat/rev/82caf34be7c823fc4fddd90cc167a6315bffebfd/Source/WebCore/platform/network/DataURLDecoder.cpp#93-94

There is 
https://searchfox.org/wubkat/rev/82caf34be7c823fc4fddd90cc167a6315bffebfd/Source/WTF/wtf/URL.cpp#370-386

used by decode
https://searchfox.org/wubkat/rev/82caf34be7c823fc4fddd90cc167a6315bffebfd/Source/WebCore/platform/network/DataURLDecoder.cpp#197-203

but which seems to be used only in this case
https://searchfox.org/wubkat/rev/82caf34be7c823fc4fddd90cc167a6315bffebfd/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp#652-666

The other decode is used at two places
https://searchfox.org/wubkat/source/Source/WebCore/loader/ResourceLoader.cpp#297
https://searchfox.org/wubkat/source/Source/WebKit/NetworkProcess/soup/NetworkDataTaskSoup.cpp#343


And there is also
https://searchfox.org/wubkat/rev/82caf34be7c823fc4fddd90cc167a6315bffebfd/Source/WTF/wtf/URL.cpp#1083-1101