Bug 1464898 - Disable /service-workers/service-worker/fetch-canvas-tainting-video-cache.https.html on Linux and Win7 for frequent failures. r=jmaher

testing/web-platform/meta/service-workers/service-worker/fetch-canvas-tainting-video-cache.https.html.ini

@@ -1,4 +1,7 @@
 [fetch-canvas-tainting-video-cache.https.html]
+  disabled:
+    if (os == "linux"): https://bugzilla.mozilla.org/show_bug.cgi?id=1464898
+    if (os == "win") and (version == "6.1.7601") and (bits == 32): https://bugzilla.mozilla.org/show_bug.cgi?id=1464898
   [url "https://web-platform.test:8443/service-workers/service-worker/resources/fetch-access-control.py?VIDEO&cache=true&mode=cors&credentials=same-origin&url=https%3A%2F%2Fwww1.web-platform.test%3A8443%2Fservice-workers%2Fservice-worker%2Fresources%2Ffetch-access-control.py%3FVIDEO%26cache%3Dtrue%26ACAOrigin%3Dhttps%3A%2F%2Fweb-platform.test%3A8443" with crossOrigin "" should be NOT_TAINTED]
     expected: FAIL