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Support proxying custom WebSocket sub protocols #559

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Support proxying custom WebSocket sub protocols #559

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6 changes: 4 additions & 2 deletions lib/requestHandler.js
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Original file line number Diff line number Diff line change
Expand Up @@ -215,6 +215,7 @@ function fetchRemoteResponse(protocol, options, reqData, config) {
function getWsReqInfo(wsReq) {
const headers = wsReq.headers || {};
const host = headers.host;
const wsProtocol = headers['sec-websocket-protocol'] || '';
const hostName = host.split(':')[0];
const port = host.split(':')[1];

Expand Down Expand Up @@ -248,7 +249,8 @@ function getWsReqInfo(wsReq) {
hostName: hostName,
port: port,
path: path,
protocol: isEncript ? 'wss' : 'ws'
protocol: isEncript ? 'wss' : 'ws',
wsProtocol: wsProtocol
};
}
/**
Expand Down Expand Up @@ -712,7 +714,7 @@ function getWsHandler(userRule, recorder, wsClient, wsReq) {
const serverInfo = getWsReqInfo(wsReq);
const serverInfoPort = serverInfo.port ? `:${serverInfo.port}` : '';
const wsUrl = `${serverInfo.protocol}://${serverInfo.hostName}${serverInfoPort}${serverInfo.path}`;
const proxyWs = new WebSocket(wsUrl, '', {
const proxyWs = new WebSocket(wsUrl, serverInfo.wsProtocol, {
rejectUnauthorized: !self.dangerouslyIgnoreUnauthorized,
headers: serverInfo.noWsHeaders
});
Expand Down