禁止ios网页缩放

1. meta

2. JS

   • 禁用双指缩放:

     document.documentElement.addEventListener('touchstart', function (event) {  if (event.touches.length > 1) {    event.preventDefault();  }}, false);

   • 禁用手指双击缩放:

     var lastTouchEnd = 0;document.documentElement.addEventListener('touchend', function (event) {  var now = Date.now();  if (now - lastTouchEnd <= 300) {    event.preventDefault();  }  lastTouchEnd = now;}, false);