Flutter web UI does not zoom in properly - flutter-web

I just starting using flutter web since it's stable release. One thing I observed about this is the UI is not zoomed in like other web app.
Below is the default starter app which appears on creating a new flutter project. I've just changed the body color of Scaffold to notice the issue properly.
It's good the it's zoom is not responsive to scroll wheel of a mouse but when I use the touchpad of my laptop to zoom in, it responds to it. The result of zoom is a bit unexpected.
Below is the result.
In this case I kept my cursor to the center of screen and zoomed it. Keeping the cursor anywhere leads to almost same kind of UI.
Any workaround for it? Or maybe if I can disable this pinch zoom feature ?

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working example
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