Disabling "Use a prediction service to load pages more quickly" doesn't prevent pre-connect or prefetch

Since Chromium 51, the “chrome.privacy.network.networkPredictionEnabled” setting does no longer affect the behavior of link rel preconnect, prefetch or dns-prefetch - those will always execute and make DNS requests, open sockets and in case of prefetch make a HTTP request.

There is still an Open Issue in Chromium regarding the inability to stop the browser from using preload, prefetch, and preconnect, even when disabling the option for using a prediction service and using a plugin to control this, like uBlock Origin.

Has the the Brave developers done anything to resolve this in the Chromium based sources?

Steps to reproduce:

  1. Disable “prediction service to load pages more quickly” in the advanced settings
  2. Open a network monitor (in uBlock Origin, devtools or other means)
  3. Visit a service like jsfiddle.net and click “Run”
  4. Check the log to verify that DNS requests are made and/or sockets are opened regardless of the setting:
// Log Output
* preconnect https://jsfiddle.net/wsxng5bg/
* prefetch https://jsfiddle.net/wvu9f8td/
* dns-prefetch https://jsfiddle.net/407hsnxv/

1 Like

This topic was automatically closed after 30 days. New replies are no longer allowed.