1178027 - Firefox caches scripts built with TypeScript even if caching is disabled

Status: RESOLVED INCOMPLETE

(DevTools :: Debugger, defect)

Description

[Marco Castelluccio [:marco]]

For some reason, Firefox seems to cache scripts built with TypeScript even if the server is using all the no-cache headers.
The cached scripts are used even if I clear the browser cache.

It doesn't happen with normal JavaScript. In the app I'm working on I have a mixture of JS and TS, the changes to the JS files have visible effects.

I've noticed that when I open a script from the developer tools (so, a new tab is opened to "view-source:url"), the script that is opened is not the updated version. If I reload the "view-source:url" page, I see the updated script. If I reload the app's page again and reopen the script from the developer tools, I get the old version again.

Comment 1

[Panos Astithas (he/him) [:past] (please ni?)]

Do you see this in Firefox 41? ISTR that we don't cache source-mapped sources anymore. Can you provide a test page/URL for debugging?

Comment 2

[James Long (:jlongster)]

Are you talking about the debugger specifically, that it caches those files, or even that the page itself runs outdated files, regardless of the devtools?

Comment 3

[Marco Castelluccio [:marco]]

(In reply to Panos Astithas [:past] from comment #1)
> Do you see this in Firefox 41? ISTR that we don't cache source-mapped
> sources anymore. Can you provide a test page/URL for debugging?

I was seeing this in Firefox 41 with https://github.com/mozilla/pluotsorbet, unfortunately it's not really a basic test case.
It was working correctly in a clean profile.

(In reply to James Long (:jlongster) from comment #2)
> Are you talking about the debugger specifically, that it caches those files,
> or even that the page itself runs outdated files, regardless of the devtools?

I believe the page itself was running outdated files, because some |console.log| that I added were not being logged.

Comment 4

[Jason Laster [:jlast]]

I'm sorry it's been awhile. Could you see if this is still relevant?

Comment 5

[Marco Castelluccio [:marco]]

I haven't been working on that for a while, it would be hard for me to reproduce now.