title: Pinch to zoom doesn't work on macOS (Chrome) when fullscreen is triggered using the Fullscreen API
body: <p>On macOS, it's possible to use the gesture "pinch to zoom" with the trackpad to zoom onto a page.</p>
  
  <p>This feature works correctly on Chrome when the page is not in fullscreen. It also works correctly when triggering the fullscreen using the upper-right green button of the Chrome window.</p>
  
  <p>However, when triggering the fullscreen programatically using the HTML5 Fullscreen API (<code>webkitRequestFullscreen</code> -- <a href="https://developer.mozilla.org/en-US/docs/Web/API/Fullscreen_API" rel="nofollow noreferrer">https://developer.mozilla.org/en-US/docs/Web/API/Fullscreen_API</a>), the "pinch to zoom" gesture is disabled.</p>
  
  <p>It's possible to test this out <a href="https://sindresorhus.com/screenfull.js/" rel="nofollow noreferrer">here</a>: when triggering fullscreen using the upper-right green button, "pinch to zoom" works; when using the "Request document", it won't work.</p>
  
  <p>It seems like there are two different fullscreen mode on macOS, but it's hard to find any information on it.</p>