Broken HAR file for https://en.wikipedia.org/wiki/2019–20_coronavirus_pandemic

[soulgalore]

Hi, yesterday I started to test one of our biggest coronavirus pages of Wikipedia (https://en.wikipedia.org/wiki/2019–20_coronavirus_pandemic). We use Firefox 74. If I use 74 and just export the HAR from devtools the HAR looks fine (except that it misses the title):

But when we use the HAR export trigger, it seems like the generated HAR misses more things:

Also some responses misses timings:

However when I try to reproduce it locally, the exact same way as on our test servers, I cannot reproduce it. Hopefully there was glitch. But I'm thinking maybe there's something missing the exporter or in Firefox that creates faulty HARs?

Best Peter

[janodvarko]

Thanks for the report Peter!

The missing title should be fixed in this bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1616244

The missing headerSize looks indeed like an issue in HAR export trigger, this needs investigation.

Honza

[soulgalore]

Ok! I missed to include the HAR, would that help?

[soulgalore]

Let me look into the missing timings, I can do that tomorrow, I haven't had time yet to go through it.