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[RemoteDebugger] WebKitRPCWarning: Did not find handler for the message

See original GitHub issue

The problem

When switching from Native context to Web view context, an error message is being thrown, since it is not handled terminates the session, resulting in test cases failing.

Seen this issue on iOS only. iOSCapabilities.setCapability(“startIWDP”,true); iOSCapabilities.setCapability(“autoWebview”, true); iOSCapabilities.setCapability(“autoWebviewTimeout”, 7000);

Environment

Appium version (or git revision) that exhibits the issue: 1.8.2 Beta
Desktop OS/version used to run Appium: MAC OS 10.13.6
Mobile platform/version under test: 11.4.1
Real device or emulator/simulator: iPhone 6
Appium CLI or Appium.app|exe:

Details

2018-07-31 08:19:49:534 - [RemoteDebugger] WebKitRPCWarning: Did not find handler for the message
2018-07-31 08:19:49:534 - [RemoteDebugger]     at WebKitRpcClient.receive (/usr/local/lib/node_modules/appium/node_modules/appium-remote-debugger/lib/webkit-rpc-client.js:142:25)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at WebSocket.emit (events.js:180:13)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver.receiverOnMessage (/usr/local/lib/node_modules/appium/node_modules/ws/lib/websocket.js:720:20)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver.emit (events.js:180:13)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver.dataMessage (/usr/local/lib/node_modules/appium/node_modules/ws/lib/receiver.js:414:14)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver.getData (/usr/local/lib/node_modules/appium/node_modules/ws/lib/receiver.js:346:17)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver.startLoop (/usr/local/lib/node_modules/appium/node_modules/ws/lib/receiver.js:133:22)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver._write (/usr/local/lib/node_modules/appium/node_modules/ws/lib/receiver.js:69:10)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at doWrite (_stream_writable.js:410:12)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at writeOrBuffer (_stream_writable.js:396:5)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Receiver.Writable.write (_stream_writable.js:294:11)
2018-07-31 08:19:49:535 - [RemoteDebugger]     at Socket.socketOnData (/usr/local/lib/node_modules/appium/node_modules/ws/lib/websocket.js:795:35)
2018-07-31 08:19:49:536 - [RemoteDebugger]     at Socket.emit (events.js:180:13)
2018-07-31 08:19:49:536 - [RemoteDebugger]     at addChunk (_stream_readable.js:274:12)
2018-07-31 08:19:49:536 - [RemoteDebugger]     at readableAddChunk (_stream_readable.js:261:11)
2018-07-31 08:19:49:536 - [RemoteDebugger]     at Socket.Readable.push (_stream_readable.js:218:10)
2018-07-31 08:19:49:536 - [RemoteDebugger]     at TCP.onread (net.js:581:20)
2018-07-31 08:19:49:539 - uncaughtException: Did not find handler for the message