Lighthouse returned error: FAILED_DOCUMENT_REQUEST

[rthangam]

"Lighthouse returned error: FAILED_DOCUMENT_REQUEST. Lighthouse was unable to reliably load the page you requested. Make sure you are testing the correct URL and that the server is properly responding to all requests. (Details: net::ERR_CONNECTION_FAILED)"

While running the lighthouse chrome plugin i got the above error which is mentioned in the title as well.

When i ran the tool in the dev console i got the following error which got captured:

jsLibraries.map is not a function

Channel: DevTools
Initial URL: xxxxx
Chrome Version: 85.0.4183.83
Stack Trace: TypeError: jsLibraries.map is not a function
    at collectStacks (devtools://devtools/remote/serve_file/@94abc2237ae0c9a4cb5f035431c8adfb94324633/lighthouse_worker/lighthouse_worker_module.js:2078:97)
    at async Function.populateBaseArtifacts (devtools://devtools/remote/serve_file/@94abc2237ae0c9a4cb5f035431c8adfb94324633/lighthouse_worker/lighthouse_worker_module.js:1582:22)
    at async Function.run (devtools://devtools/remote/serve_file/@94abc2237ae0c9a4cb5f035431c8adfb94324633/lighthouse_worker/lighthouse_worker_module.js:1586:17)
    at async Function._gatherArtifactsFromBrowser (devtools://devtools/remote/serve_file/@94abc2237ae0c9a4cb5f035431c8adfb94324633/lighthouse_worker/lighthouse_worker_module.js:2257:151)
    at async Function.run (devtools://devtools/remote/serve_file/@94abc2237ae0c9a4cb5f035431c8adfb94324633/lighthouse_worker/lighthouse_worker_module.js:2249:11)

[devtools-bot]

Thanks! Appreciate you filing this bug. 👏

This is a known issue, most well described in #2784. So, we'll automatically close this as a duplicate.

However, if you believe your bug is different than the cases described there, please comment here with "necessarily-wide-alpaca" and I'll reopen this bug. 🤖 Beep beep boop.