Loading local HTML to QML WebView in Android - font size issue

Two QQuickWidgets are placed in ui. Basic QML with a WebView is loaded in both. Webview on first widget loads a plain HTML page from internet. Second widget loads SAME html content from a local file.

Content in first widget is as expected; matches with same page loaded in a browser. BUT contents in second widget looks zoomed. All font, form elements etc. are much bigger than expected.

Applying CSS, font-size parameter etc, are not solving the issue.

EDIT:
After several experiments, I could observe it as a loading issue: irrespective of content from web or local. To see the behaviour, place 3 QQuickWidgets in the UI.. Now load all of them one after the other.. last one will be properly size adjusted. Give qApp.processEvents((QEventLoop::AllEvents) before each of the setSource statements: now, some will be size adjusted;some may not. sometimes all will be size adjusted.
Now, place two pushButtons and call loading of qwidget 1 & 2 from first button, and 1 & 3 from second button. 2 & 3 will be loaded properly most of the times.