feat: support vue-loader 15

Author: yyx990803

Diff for: index.js

@@ -6,12 +6,11 @@
 var loaderUtils = require('loader-utils')
 var path = require('path')
 var hash = require('hash-sum')
+var qs = require('querystring')
 
 module.exports = function () {}
 
 module.exports.pitch = function (remainingRequest) {
-  if (this.cacheable) this.cacheable()
-
   var isServer = this.target === 'node'
   var isProduction = this.minimize || process.env.NODE_ENV === 'production'
   var addStylesClientPath = loaderUtils.stringifyRequest(this, '!' + path.join(__dirname, 'lib/addStylesClient.js'))
@@ -25,7 +24,11 @@ module.exports.pitch = function (remainingRequest) {
   // direct css import from js --> direct, or manually call `styles.__inject__(ssrContext)` with `manualInject` option
   // css import from vue file --> component lifecycle linked
   // style embedded in vue file --> component lifecycle linked
-  var isVue = /"vue":true/.test(remainingRequest) || options.manualInject
+  var isVue = (
+    /"vue":true/.test(remainingRequest) ||
+    options.manualInject ||
+    qs.parse(this.resourceQuery.slice(1)).vue != null
+  )
 
   var shared = [
     '// style-loader: Adds some css to the DOM by adding a <style> tag',