[Webkit-unassigned] [Bug 138169] WKWebView does not fully support custom NSURLProtocol

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=138169

--- Comment #28 from Pavel Zdenek <pavel at salsitasoft.com> ---
(In reply to comment #27)
> There is a major bug in the comment #25 approach, having a registered
> NSURLProtocol causes post bodies to be stripped.

I can imagine it being not a bug, but actually an intentional logic along the original behavior of not sending POST body. Where in both cases, the intent correctness can be discussed, but not treated as a bugfix. I have spent some time looking into WK2 sources, hoping to find an approximate place of such "bug". I got a gut feeling instead: when registerSchemeForCustomProtocol is invoked, things appear to get flipped to a "custom protocol" primarily on WK side and the IPC is just a subsystem. So a stripped POST request is made for that custom protocol, and when IPC pipe spits out "not interested", WK side simply goes on with the request already made. Take this with a shovel of salt, i'm a github skimmer, not WK contributor.

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