How to align a game to the center of the screen with canvas + Webview engine?

I am developing a game in Construct 2 and compile the app in Cocoon.io with Canvas + Webview engine.

The aspect ratio is 16:9 and everything looks good on the smartphones I tested with this ratio.

When I tested on a tablet with the aspect ratio of 4:3, I noticed that the game was aligned to the left of the screen. But with the Webview or Webview + Webview engine, the game stays centered just the way I want it.

Is there any way the game stays centered with the Canvas + Webview engine?

Tested with:

  - Cocoon version: (2.1.0 and Latest)

  - Webview engine: webview, webview + and canvas +

  - CocoonAds

Any help? :)

FYI Construct 2 dropped support for Canvas+ around 4 years ago, so it's been unsupported for years now.

Hi!

With the canvas+ my game has very good performance.

Are there good alternatives to canvas+?

Thank you!

On most devices, the normal Cordova webview performs well.

To compile the game, which one do you recommend, Cocoon.io or Phonegap?