Function hasBadZoomedRects

external/.scrollLibs.js:2167–2175

(measure)

  var badZoomedRects = null
  function hasBadZoomedRects(measure) {
    if (badZoomedRects != null) {
      return badZoomedRects
    }
    var node = removeChildrenAndAdd(measure, elt("span", "x"))
    var normal = node.getBoundingClientRect()
    var fromRange = range(node, 0, 1).getBoundingClientRect()
    return (badZoomedRects = Math.abs(normal.left - fromRange.left) > 1)
  }

  // Known modes, by name and by MIME
  var modes = {},