Alright, I’ve found some interesting test results…

After running a test (namely chrome://net-internals/#tests) on an affected URL (http://www.youtube.com/) with and without the Web Shield on I got some curious results:

WITH WEB SHIELD ON

  • FAIL - Fetch http://www.youtube.com/ - Don’t use any proxy - ERR_CONNECTION_RESET (-101) - 42007ms

  • FAIL - Fetch http://www.youtube.com/ - Use system proxy settings - ERR_CONNECTION_RESET (-101) - 44296ms

  • FAIL - Fetch http://www.youtube.com/ - Use Firefox’s proxy settings - ERR_FILE_NOT_FOUND (-6) - 1ms

  • FAIL - Fetch http://www.youtube.com/ - Auto-detect proxy settings - ERR_CONNECTION_RESET (-101) - 44266ms

  • PASS - Fetch http://www.youtube.com/ - Don’t use any proxy + Disable IPv6 host resolving - 481ms

  • PASS - Fetch http://www.youtube.com/ - Use system proxy settings + Disable IPv6 host resolving- 2845ms

  • FAIL - Fetch http://www.youtube.com/ - Use Firefox’s proxy settings + Disable IPv6 host resolving - ERR_FILE_NOT_FOUND (-6) - 2ms

  • PASS - Fetch http://www.youtube.com/ - Auto-detect proxy settings + Disable IPv6 host resolving - 2770ms

  • FAIL - Fetch http://www.youtube.com/ - Don’t use any proxy + Probe for IPv6 host resolving - ERR_CONNECTION_RESET (-101) - 42005ms

  • FAIL - Fetch http://www.youtube.com/ - Use system proxy settings + Probe for IPv6 host resolving - ERR_CONNECTION_RESET (-101) - 44326ms

  • FAIL - Fetch http://www.youtube.com/ - Use Firefox’s proxy settings + Probe for IPv6 host resolving - ERR_FILE_NOT_FOUND (-6) - 4ms

  • FAIL - Fetch http://www.youtube.com/ - Auto-detect proxy settings + Probe for IPv6 host resolving - ERR_CONNECTION_RESET (-101) - 44261ms

WITH WEB SHIELD OFF

With the Web Shield on, all connections fail except when IPv6 host resolving is disabled!
Avast devs, please fix this!