CODEWITHSUNDEEP
firefoxweb-applications
David Balažic
David Balažic

Reputation: 1474

How to turn off network probing in Firefox?

Recent versions of Firefox do some background accesses to websites that are immediately aborted. (it's related to some IPv4/IPv6 decision or similar)

I am developing a web application and those probes spam my logs (each prints a multi-line stack trace)

Is there a setting in Firefox to turn this probing off?

Upvotes: 1

Views: 1490

Answers (1)

David Balažic
David Balažic

Reputation: 1474

This is a Firefox feature called Race Cache With Network .

Short description: Firefox sends requests for cached resources concurrently to the local disk cache and the actual network server. Whichever result arrives first is used - the other request is canceled.

The idea is that sometimes the network is faster that the cache on HDD, so this way the page is loaded faster.

To turn it off, open about:config and set network.http.rcwn.enabled to false.

Sources:

Upvotes: 2

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