title: Unity Webgl game never finishes loading.Browser tab freezes
body: <p>I'm developing a quiz game and want it to run on browsers.So far the game only loads to about 90% of the progress bar, then the tab freezes. A browser warning shows up at the top saying that something is making the page slow. This happens both when the game is run locally or from a server. 
  The PC works fine and I wasn't able to find the problem so far. I tried playing wwith the build player configs and reducing all textre max sizes (solved the problem in this post <a href="https://forum.unity.com/threads/webgl-stuck-at-90-loading.532707/" rel="nofollow noreferrer">https://forum.unity.com/threads/webgl-stuck-at-90-loading.532707/</a>).</p>
  
  <p>The last lines shown on the console before the load freezing are the json files readings. So I think it might have something to do with them. 
  If anyone has any idea it would be a great help.</p>