And now Opera 10.60 doesn’t want to Validate by Right Click on the page (that was a very useful feature).
Instead, I get this nasty strange message:
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request POST /check.
Reason: Error reading from remote server
Apache/2 Server at validator.w3.org Port 80
The Validation works if I go to the validator.w3.org site and enter the URI.