refuse duplicates

vite.config.js

@@ -4,7 +4,7 @@ import { defineConfig } from 'vite';
 import { name } from './package.json'
 
 function proRouterViews() {
-
+  let views = {}
   return {
 	name: 'pro-router-views',
 	transformIndexHtml(html) {
@@ -17,12 +17,15 @@ function proRouterViews() {
 		if (/\.imba$/.test(id)) {
 		  let viewRegExp = /tag view-((\w|\S)+)( |\n)/g
 		  let result = null
-		  let views = ""
+		  let views_str = ""
 		  while(result = viewRegExp.exec(src)) {
-			if(result[1] != 'not_found')
-			  views += "Views.push(\""+ result[1] +"\");"
+			let view = result[1]
+		    if(view != 'not_found' && !views[view]){
+			  views[view] = true
+			  views_str += "Views.push(\""+ result[1] +"\");"
+			}
 		}
-		  return { code: views+src, map: null }
+		  return { code: views_str+src, map: null }
 		}
       }
     }