You can now use the Google Cloud Console to create the following load balancers in Premium Tier:
- Regional external Application Load Balancer
- Regional external proxy Network Load Balancer
Previously, only Standard Tier support was available in the Console.
Previously, the classic external Application Load Balancer had lenient HTTP/2 request parsing that did not reject requests containing certain invalid characters in the request path. The same requests would have been rejected if they had arrived over HTTP/1 or HTTP/3.
Now, all HTTP requests, including HTTP/2 requests, are rejected if the path contains a character that isn't one of the following:
An allowed ASCII character specified in RFC 3986, sections 3.3 and 3.4.
One of the following special allowed characters: [ ] { } | ^
All other characters must be properly URL encoded.
You can identify rejected requests in the proxy logs by looking for the following:
- responseCode: 400
- response_code_details: invalid_http2_client_header_format
LinkedIn
Twitter
