[Webkit-unassigned] [Bug 174668] New: WebDriver: correctly handle main frame handles

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174668

            Bug ID: 174668
           Summary: WebDriver: correctly handle main frame handles
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: cgarcia at igalia.com
                CC: bburg at apple.com

When I switched to use std::optional instead of empty strings for the browsing contexts in WebDriver, I forgot that automation uses empty string for frames to refer to the main frame. We should handle that case, because we are currently considering empty strings as valid browsing context. It's not a big deal because Automation converts back the empty string received to the main frame, though. We should also ensure we close the current browsing context when switching to a new top level browsing context.

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