1421418 - Too fast network requests not displayed in developer tools

Status: RESOLVED DUPLICATE of bug 1000540

(DevTools :: Netmonitor, defect, P4)

Description

[rugk]

Attachment: nonetworkrequests.webm

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20171113102334

Steps to reproduce:

1. Create a minimal HTML file.
2. Open it locally.
3. F12 -> Network.
4. Click on "Reload".

(Files to be attached)


Actual results:

You'll still see no requests.

(BTW, AFAIK, in Firefox < 57 it always worked, at least if you first open the network pan el, and then reload.)


Expected results:

You should see each request from the beginning (200) up to the end.

Using a local file it is just very obvious, but I also see this with other pages. E.g. internal about:newtab or so. If you are lucky you'll see some of the last requests, but no more.
Same could happen with websites.

Firefox is just too fast here. ;)
Also reproducible with Firefox 58 (DevEdition).

Comment 1

[rugk]

Attachment: file.html

HTML file to reproduce

Comment 2

[rugk]

Attachment: 1.png

png picture for html

Comment 3

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Can you reproduce the issue when testing with Firefox 59?
https://www.mozilla.org/en-US/firefox/channel/desktop/

Honza

Comment 4

[rugk]

Yes, with Firefox Nightly 59.a (or so, flatpak version) it is reproducible.

Comment 5

[Jan Honza Odvarko [:Honza] (always need-info? me)]

Ah, are you saying that you are loading the file using file: protocol?
This isn't supported (not even in Firefox 36).

Honza

Comment 6

[rugk]

Yes. So what exactly is not supported for them? Dev tools/network panel?

But seriously, debugging tools are not supported when the file is loaded via file:? What the heck… for easy development tasks that is the first/easiest thing one does, so this is certainly not far fetched or so.

So take it as a feature request if that is really not supported yet.

Comment 7

[Jan Honza Odvarko [:Honza] (always need-info? me)]

(In reply to rugk from comment #6)
> Yes. So what exactly is not supported for them? Dev tools/network panel?
> 
> But seriously, debugging tools are not supported when the file is loaded via
> file:? What the heck… for easy development tasks that is the first/easiest
> thing one does, so this is certainly not far fetched or so.
> 
> So take it as a feature request if that is really not supported yet.
Yes, we want to have this feature and it's already reported as bug 1000540

Honza