Qt 6.2.4 / Android Clang arm64-v8a / Impossible to render HTML in QML WebView

Since Qt decided to remove its Location module and since our app needs map display capabilities, we are trying to display a map inside a QML WebView. The map is described inside an HTML file. The HTML is loaded as a string into a QML WebView using WebView::loadHTML. The HTML renders great under Windows by just double-clicking onto it. But WebView displays an empty black window...

Repro case:

• Use attached HTML file and double click it: it opens fine.
• Instantiate a QML WebView and use loadHTML to load attached file as a string: WebView displays an empty black window.

Android log displays these errors:

W kooling.KoolAp: Accessing hidden method Landroid/os/Trace;->isTagEnabled(J)Z (greylist, reflection, allowed)
W kooling.KoolAp: Accessing hidden method Landroid/os/Trace;->traceBegin(JLjava/lang/String;)V (greylist, reflection, allowed)
W kooling.KoolAp: Accessing hidden method Landroid/os/Trace;->traceEnd(J)V (greylist, reflection, allowed)
W kooling.KoolAp: Accessing hidden method Landroid/os/Trace;->asyncTraceBegin(JLjava/lang/String;I)V (greylist, reflection, allowed)
W kooling.KoolAp: Accessing hidden method Landroid/os/Trace;->asyncTraceEnd(JLjava/lang/String;I)V (greylist, reflection, allowed)

E chromium: [ERROR:simple_index_file_posix.cc(36)] opendir /data/user/0/com.kooling.KoolApp/cache/WebView/Default/HTTP Cache/Code Cache/js: No such file or directory (2)
E chromium: [ERROR:simple_index_file.cc(577)] Could not reconstruct index from disk
W ContentCatcher: Failed to notify a WebView
W ContentCatcher: Failed to notify a WebView
W ContentCatcher: Failed to notify a WebView