Opera moves to WebKit and V8

Once I talked to a person at Opera who had being involved into their networking stack. Their approach was to make sure that they could always restart connections in non-pipelining mode after the first sign of troubles. And troubles could mean unexpected timing in response, suspicions header content or their order etc. He claimed that after a couple of years they got enough information to make this works.

To apply such extensive blacklisting at many implementation levels to Mozilla's networking stack would require a very substantiate code rewrite.