手机输入框自动放大问题

app.html

@@ -22,6 +22,14 @@
         appendScript('https://cdn.bootcss.com/js-polyfills/0.1.33/polyfill.min.js')
       }
       if (/(iPhone|iPad|Opera Mini|Android.*Mobile|NetFront|PSP|BlackBerry|Windows Phone)/ig.test(w.navigator.userAgent)) {
+        let meta1 = document.createElement('meta')
+        let meta2 = document.createElement('meta')
+        meta1.name = 'viewport'
+        meta1.content = 'initial-scale=1.0, user-scalable=no, width=device-width'
+        meta2['http-equiv'] = 'Cache-Control'
+        meta2.content = 'no-siteapp'
+        document.getElementsByTagName('head')[0].appendChild(meta1)
+        document.getElementsByTagName('head')[0].appendChild(meta2)
         var docEl = d.documentElement
         var resizeEvt = 'orientationchange' in window ? 'orientationchange' : 'resize'
         var recalc = function () {