Intermittent failure in /html/semantics/embedded-content/media-elements/networkState_during_loadstart.html

[jdm]

{
    "status": "FAIL", 
    "group": "default", 
    "message": "assert_equals: expected 2 but got 1", 
    "stack": "@http://web-platform.test:8000/html/semantics/embedded-content/media-elements/networkState_during_loadstart.html:33:4\nTest.prototype.step@http://web-platform.test:8000/resources/testharness.js:1611:25\n@http://web-platform.test:8000/html/semantics/embedded-content/media-elements/networkState_during_loadstart.html:32:6\n", 
    "subtest": "videoElement.networkState should be NETWORK_LOADING during loadstart event", 
    "test": "/html/semantics/embedded-content/media-elements/networkState_during_loadstart.html", 
    "line": 194521, 
    "action": "test_result", 
    "expected": "PASS"
}