换一种禁用二指缩放的方案

src/main.js

@@ -31,12 +31,11 @@ window.addEventListener('resize', () => {
   document.documentElement.style.fontSize = window.innerHeight * 0.025276 + 'px'
 })
 
-document.documentElement.addEventListener('touchmove', function(event) {
+document.addEventListener('touchstart', function(event) {
   if (event.touches.length > 1) {
     event.preventDefault()
-    event.stopPropagation()
   }
-}, true)
+}, { passive: false, capture: false })
 
 new Vue({
   router,