Bypass HTTP proxies for local JS gRPC clients (#65634)

web/packages/teleterm/src/mainProcess/mainProcess.ts

@@ -930,6 +930,9 @@ async function setUpTshdClients({
     host: tshdAddress,
     channelCredentials: creds,
     interceptors: [loggingInterceptor(new Logger('tshd'))],
+    // This gRPC client talks to a localhost endpoint on Windows.
+    // Do not route it through HTTP proxies.
+    clientOptions: { 'grpc.enable_http_proxy': 0 },
   });
   return {
     terminalService: new TerminalServiceClient(transport),

web/packages/teleterm/src/preload.ts

@@ -70,6 +70,9 @@ async function getElectronGlobals(): Promise<ElectronGlobals> {
     host: addresses.tsh,
     channelCredentials: credentials.tshd,
     interceptors: [loggingInterceptor(new Logger('tshd'))],
+    // This gRPC client talks to a localhost endpoint on Windows.
+    // Do not route it through HTTP proxies.
+    clientOptions: { 'grpc.enable_http_proxy': 0 },
   });
   const tshClient = withoutInsecureTshdMethods(createTshdClient(tshdTransport));
   const vnetClient = createVnetClient(tshdTransport);

web/packages/teleterm/src/services/pty/ptyHost/ptyHostClient.ts

@@ -33,6 +33,9 @@ export function createPtyHostClient(
   const transport = new GrpcTransport({
     host: address,
     channelCredentials: credentials,
+    // This gRPC client talks to a localhost endpoint on Windows.
+    // Do not route it through HTTP proxies.
+    clientOptions: { 'grpc.enable_http_proxy': 0 },
   });
   const client = new GrpcClient(transport);