[Webkit-unassigned] [Bug 186276] New: [WPE][GTK] webkit_web_resource_get_data_finish can return NULL without setting error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=186276

            Bug ID: 186276
           Summary: [WPE][GTK] webkit_web_resource_get_data_finish can
                    return NULL without setting error
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: mcatanzaro at igalia.com
                CC: bugs-noreply at webkitgtk.org

This has been confusing me on and off since 2015. webkit_web_resource_get_data_finish can return NULL without setting its error parameter, which is illegal as it is documented to return NULL only on failure. In this case, Epiphany properly tries to use the error and then crashes because it is NULL. We should always set error in this case.

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