Respect payload length of ws control messages

Websocket control messages are allowed to have payloads. Don't set the
payload lenght to zero when deserializing them, which can corrupt the
message and potentially the remainder of the stream.

Author: zolstein

edge-ws/src/lib.rs

@@ -193,12 +193,7 @@ impl FrameHeader {
 
             let frame_header = FrameHeader {
                 frame_type,
-                payload_len: matches!(
-                    frame_type,
-                    FrameType::Binary(_) | FrameType::Text(_) | FrameType::Continue(_)
-                )
-                .then(|| payload_len)
-                .unwrap_or(0),
+                payload_len,
                 mask_key,
             };