Disabled(white screen) after download app from ionic view Server in mobile device

I already created app in ionic and uploaded successfully in ionic server.
Now I am download app from ionic server and it open fine, but problem is screen is disabled like white screen(Can’t click & enter keyword)

Please suggestion to me If I have any missing there.

check console for errors?

In Browser works fine. but when I try to open in mobile device from download in ionic view.
so how can i check console log error ?

connect device to computer and go there:
chrome://inspect/#devices
using chrome obviously

There is no error in console and still come white screen.
but I have check in browser in chrome I found this error:
"No ‘Access-Control-Allow-Origin’ header is present on the requested resource."
and one more thing I run throw commend-line.

  • ionic serve for browser