Android application not loading on older devices

[mikeller]

Reproduction:

• start the android app.

Expected behaviour:

• the loading screen (wasp in front of honeycomb) shows;
• it switches to the landing screen.

Actual behaviour:

• the landing screen stays on.

System information:

• hardware: Nexus 7 tablet;
• os: android 5.1.1;
• application version: betaflight-configurator_10.8.0-debug-5cc28aae

Error:
Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of "". Strict MIME type checking is enforced for module scripts per HTML spec.

[TehllamaFPV]

Replicated on Samsung Galaxy J7 Crown, Android v9

[asizon]

@mikeller take a look here #2136

[mikeller]

@asizon: #2136 was merged, and it is still broken, so there seems to be another problem.

[WalcoFPV]

Reproduced on Samsung S7 edge running Android 9 and Chrome webview 74.0.3729.136
@asizon I think, it's not a Webview related issue. After updating Chrome (version 92.0.4515.159), I have still the issue.

[mikeller]

@WalcoFPV: I suspect so too - it looks like the version of webview available on older versions of android is more restrictive as to not inferring text/javascript as the type for files loaded with type="module" that have no type.
So this seems to have been broken when we started moving parts of configurator to modules in 10.80.
According to apache/cordova-android#1142 (comment) there does not seem to be a straightforward fix for this, and the only workaround seems to be the use of extra tooling. I have tried to fix this in #2582 by adding the ionic webview - it seems to fix the issue on my Nexus 7, but not sure if this is a good fix.

[haslinghuis]

As long there are no better alternatives it's ok. Also see ionic-team/cordova-plugin-ionic-webview#629