thank you very much
When i change the socket port (6104 - 1 = 6103), the touch plugin worked (but stream still wont).
The ios version is 10.0.2.
Yes I remember when I ran bootstrap.sh, an error occurred. But why can I ignore it?
After run your source. The WDA already started:

The screenshot plugins worked

But the stream does not worked.

When i debug stream.js i saw chunk return from mjpegServer (port 9100 is forwarded to port 6104) is null

When i change the socket port (6104 - 1 = 6103), the touch plugin worked. I think there is problem with mjpegServer in WDA.

And the result when i ran http://localhost:6103/inspector (port 8100 is forwarded to port 6103)

Please help me. Thank you very much