Bug 1678663 - Add long timeout to test that times out on win 7 opt in py3, r=karlcow

This test was previously stable but seems to run a litle slower in Python 3 so we see some timeouts. Make the timeout longer so avoid the failure. Differential Revision: https://phabricator.services.mozilla.com/D99435
2020-12-14 14:11:12 +00:00 · 2020-12-14 14:11:12 +00:00 · 7a47b4b10c
--- a/testing/web-platform/tests/FileAPI/file/send-file-form-iso-2022-jp.tentative.html
+++ b/testing/web-platform/tests/FileAPI/file/send-file-form-iso-2022-jp.tentative.html
@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
+<meta name=timeout content=long>
 <title>Upload files in ISO-2022-JP form (tentative)</title>
 <!--
    NOTE: This test is tentative because encoding for filename