调整webView，新增关闭按钮

pages/user/eSign.vue

@@ -1,6 +1,6 @@
 <template>
 	<view>
-		<web-view :src="webUrl" @message="onMessage"></web-view>
+		<web-view :src="webUrl"></web-view>
 	</view>
 </template>
 
@@ -14,16 +14,15 @@
 		created() {
 			this.webUrl = this.$Route.query.url
 		},
-		methods: {
-			onMessage(e){
-				let { data } = e.detail
-				data.map(val => {
-					if(val.type === 'back'){
-						this.$Route.back()
-						return
-					}
-				})
-			}
+		onNavigationBarButtonTap() {
+			let pages = getCurrentPages()  
+			let page = pages[pages.length - 1];  
+			let currentPages = page.$getAppWebview()  
+			let children=currentPages.children()  
+			children[0].close()  
+			setTimeout(()=>{  
+			   uni.navigateBack()  
+			},0)
 		}
 	}
 </script>