What I will say though is that Brotli offers a higher compression rate and has native support in Chrome & Firefox and so if you’re targeting bleeding edge browsers, choose Brotli. There’s a good (but old) thread in the unity forum about optimizing WebGL load times that explores Brotli & GZip. By default even if you select your index html file from the build folder you will get the following errors regardless of the web browser you choose: By nature WebGL can only run on a hosting server like itch.io or simmer.io and to run your WebGL game we must tell our PC to act like a server. Head over to the publish settings and turn exceptions off, data caching on and set the compression format to either GZip or Brotli. What you do need to consider is compression. You can override the blacklist by selecting ' Enabled ' next to 'Override software rendering. If you have not built the project yet, you will be instructed to do so. If you are not logged in, you will be instructed to do so. Click menu on the top of editor (Publish> WebGL Project). Select the WebGL platform and add any scenes needed for the game. If 'Webgl 2.0 Compute' is not available, you system drivers or graphics card may be blacklisted. Instructions Install WebGL Publisher using the Package Manager. Which web browser are you currently using Microsoft Edge doesn't support WebGL, so you will need to use a supported browser such as Chrome that has WebGL support built in. Use the drop-down menu to the right to select ' Enabled '. Scroll down until you find 'Webgl 2.0 Compute'. Since I’m going to allow the build on iOS I’m leaving Auto Graphics API turned on. Select 'Enable' next to 'Webgl 2.0 Compute'. For example if you’re not going to allow iOS you could turn off the Auto Graphics API and just build a WebGL 2.0 version but all of these settings are specific to your build. Next we need to publish our build, take a look at the package settings, ideally you want to set the “other settings” section to limit the build to just what you need for your game.

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