For H5 projects published directly, http-server or anywhere -p

When you open it at this time, you will find that the page is as follows:

Solution: PlayerSetting->Player->Publishing Setting

Check DecomPression Fallback

It can work normally after being released at this time, but it is not full screen:

In the released H5 project, edit index.html file

Directly modify the style of canvas:

<canvas id="unity-canvas" style="width: 100%; height: 100%; background: #231F20"></canvas>

Or insert code in <Script> :

  var canvas = document.getElementById("#unity-canvas");
    canvas.height = document.documentElement.clientHeight;
    canvas.width = document.documentElement.clientWidth;

This can solve the problem, but it is troublesome to modify it manually after each release. Later, we will study the automatic processing during release.

Or there are other full-screen settings.