Maybe I have similar issue:
My webapp fires from a webpage. When I access the web app from the webpage on iphone safari works well but when I open on iphone google it does not work. It happen on both my iphones.
Can someone counter check this for me…on an iphone using google
Go to smartz-tutors.sg
click on the “Launch Smartz Tutors” button
Do not install the app to your home page
Click on the “Login” or “Signup” button
See if you can proceed, I get the “action not completed” error
Let me know if its ok or you get the same error
Thanks
Jay