[Webkit-unassigned] [Bug 179325] New: Uncaught Exception: TypeError: null is not an object (evaluating 'mimeType.endsWith')

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=179325

            Bug ID: 179325
           Summary: Uncaught Exception: TypeError: null is not an object
                    (evaluating 'mimeType.endsWith')
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Inspector
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bburg at apple.com
                CC: inspector-bugzilla-changes at group.apple.com,
                    webkit-bug-importer at group.apple.com

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Inspected URL:        Apple Internal :(
Loading completed:    true
Frontend User Agent:  Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/605.1.13+ (KHTML, like Gecko)

Uncaught Exceptions:
 - TypeError: null is not an object (evaluating 'mimeType.endsWith') (at MIMETypeUtilities.js:127:17)
    fileExtensionForMIMEType @ MIMETypeUtilities.js:127:17
    _customContentViewConstructorForResource @ ResourceClusterContentView.js:338:56
    _tryEnableCustomResponseContentView @ ResourceClusterContentView.js:322:99
    ResourceClusterContentView @ ResourceClusterContentView.js:64:49
    createFromRepresentedObject @ ContentView.js:52:53
    contentViewForRepresentedObject @ ContentView.js:199:72
    showContentViewForRepresentedObject @ ContentBrowser.js:149:63
    showRepresentedObject @ ContentBrowserTabContentView.js:197:64
    showRepresentedObject @ Main.js:1135:41
    _treeSelectionDidChange @ ResourceSidebarPanel.js:464:37
    dispatch @ Object.js:170:30
    dispatchEventToListeners @ Object.js:177:17
    select @ TreeElement.js:536:49
    selectOnMouseDown @ TreeElement.js:493:20
    treeElementMouseDown @ TreeElement.js:287:46
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* STEPS TO REPRODUCE
1. Load the page (pasted in radar), switch to Network Tab, click on the socket.io resource
=> Uncaught Exception

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