1959934 - test server intermittent failures on macos beta

Status: NEW

(Testing :: Mochitest, defect)

Description

[Julian Descottes [:jdescottes]]

I've been monitoring devtools intermittents for a while and I start to see a pattern where I get spikes of intermittent failures on beta + macos for issues which seem related to serving SJS or wsh.py files.

So it might be a test server issue?

Two related bugs:

• Bug 1767662

  JavaScript Error: "Firefox can’t establish a connection to the server at ws://mochi.test:8888/browser/devtools/client/netmonitor/test/file_ws_backend." {file: "http://mochi.test:8888/browser/devtools/client/netmonitor/test/html_ws-test-page.html" line: 21}

• Bug 1767273

  [task 2025-04-11T04:43:27.361Z] 04:43:27 INFO - Console message: [JavaScript Error: "XML Parsing Error: syntax error
  [task 2025-04-11T04:43:27.362Z] 04:43:27 INFO - Location: https://example.com/browser/devtools/client/netmonitor/src/har/test/sjs_cookies-test-server.sjs
  [task 2025-04-11T04:43:27.362Z] 04:43:27 INFO - Line Number 1, Column 1:" {file: "https://example.com/browser/devtools/client/netmonitor/src/har/test/sjs_cookies-test-server.sjs" line: 1}]

Those failures also happen outside of the beta+macos setup, but they seem much more frequent there. I might be wrong, but I want to keep this bug around to collect similar issues.