iOS NFC Dialog doesn't appear until exiting app (Cordova)

[JoshuaPerk]

I'm experiencing similar behavior observed in issue 283 where begin.Session(); works but does not bring the iOS (iPhone 7, 11.2.1) NFC dialog to the forefront of the viewport until double-clicking the home button or exiting the app.

https://youtu.be/LwilT02EFxg

Currently troubleshooting and will return with a solution if possible. Hoping to gather insight from anyone who has seen similar behavior or has thoughts on what might be the issue.

Attempted remedies:

• Stripped code back down to basic button, jquery click event, and nfc.beginSession(); intermitent results
• Stripped code down to onready listener; more stable results but not perfect
• Rebuilt from Cordova to PhoneGap (made sure both were up to date)

[JoshuaPerk]

WOW! After several hours of isolating the issue, it appears to be an issue with the Content-Security-Policy tag. Cordova vs. PhoneGap defaults to different tags.