[bugfix] add resourceQuery check logic.

Author: erha19

lib/loader.js

@@ -56,7 +56,7 @@ module.exports = function (content) {
   // var isServer = false
   var loaderContext = this
   var query = loaderUtils.getOptions(this)
-  var params = loaderUtils.parseQuery(this.resourceQuery)
+  var params = this.resourceQuery && loaderUtils.parseQuery(this.resourceQuery)
   var options = this.options.__vueOptions__ = Object.assign({}, this.options.vue, this.vue, query)
   var filePath = this.resourcePath
   var fileName = path.basename(filePath)
@@ -395,7 +395,7 @@ module.exports = function (content) {
       '}'
   }
 
-  if (params.entry) {
+  if (params && params.entry) {
     output += 'module.exports.el = \'' + params.entry + '\'\n' +
       'new Vue(module.exports)\n'
   }