[Webkit-unassigned] [Bug 154422] New: Google Maps "Earth" mode stops getting new data until safari restarts

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=154422

            Bug ID: 154422
           Summary: Google Maps "Earth" mode stops getting new data until
                    safari restarts
    Classification: Unclassified
           Product: WebKit
           Version: Safari 9
          Hardware: Macintosh
                OS: OS X 10.11
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: JavaScriptCore
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: rsturgell at google.com

Created attachment 271705
  --> https://bugs.webkit.org/attachment.cgi?id=271705&action=review
Screenshot of repro (earth mode not getting new data)

Google Maps 3d satellite mode (Earth mode) is very broken on safari right now.

Repro steps:

1. Navigate to google.com/maps in safari (or webkit nightly)
2. Switch to earth mode (icon in lower left corner)
3. Look at some stuff (I zoomed in and out a few times into different areas of my default viewport of seattle and trigger this very consistently)
4. After a minute or two, it stops showing new data. You can still see all the old stuff, interaction is still working and smooth.
5. Close the window (but not the safari application)
6. Open a new window and go to google.com/maps
7. Switch to earth mode
8. Black window, no data at all is rendered. It seems you need to entirely exit and restart safari to get globe to work again!

The fact that a new window doesn't "fix it" but restarting safari DOES leads me to assume this is a safari bug.

We will probably disable Earth mode in safari shortly, but you should be able to use the chrome useragent to force it back on for testing. Let me know if you are unable to see or force earth mode, we'll figure something out so you can repro.

Filed in JavaScriptCore since the timing makes this feel like jit kicked in and didn't work (possibly related to https://bugs.webkit.org/show_bug.cgi?id=153431), but I'm not at all certain about that.

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