WKWebview websocket compression is broken

I have the websocket server which enables permessage-deflate to compress massive data. The problem is when I try to use it in webview, the connection was closed.

I learned from other discussion that it can be solved by disabling Setting safari =>Advanced=>Experimental Features=>NSURLSession WebSocket, but only for Safari.

How can I solve the problem in WKWebview? Or when will the problem be solved?

WKWebview websocket compression is broken
 
 
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