[Webkit-unassigned] [Bug 31868] New: Web Inspector: Load InspectorResource mime type from CachedResource for 304 response

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=31868

           Summary: Web Inspector: Load InspectorResource mime type from
                    CachedResource for 304 response
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: apavlov at chromium.org
                CC: timothy at hatcher.name, rik at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, bweinstein at apple.com


Currently, the mime type of cached resources is provided to the
InspectorController in ResourceResponses (coming directly from the CFNetwork
library). Since WebCore issues an "If-Modified-Since" request header, it is
supposed to know the actual resource data it tries to revalidate. Other network
libraries may fail to provide the revalidated resource mime type in the
ResourceResponse, as the "Content-Type" header is absent in the 304 HTTP
response, which results in a failure to determine the cached resource mime type
in the Web Inspector.

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