Open
Description
Describe the bug
The implementation of the WebSocket handler is not correct regarding the representation of the frame length.
As shown in PRs #59 and #60, the WebsocketHandler used a wrong value for the frame length (address instead of actual value). This is solved now, but the WebsocketHandler should respect the different field lengths for the frame length attribute as defined in the RFC.
Additional context
- See page 28 of RFC6455.