Can you please share the HTML page you are using for the same?
How are you including the JS files?
Is this via including them inline via script src or via config.xml parameters.
I think I found the reason of this behaviour.
If I Quit the App via the Quitbutton in the Settings i can restart the Browser and it works fine.
If I Quit the App via Navibuttons and "swipe" it away it dumps.
I cant explain the difference but as long as I quit the App via Settings it works
This seems to be issue with EMDK.
Please try with TC8000 L device and see the behavior.
When you kill via EB quit button,then EB process gets killed and EB also releases EMDK Barcode Manager instance.
Bu when you kill via swipe then EB EMDK Barcode manager does not get released.
In older EMDK versions in KK devices,the EMDK barcode manager does not get released automatically if the associated process is killed. But that has been fixed in new EMDK versions. So please try with TC8000 L devices and let me know the result.