push external import in localhost as well

apps/remix-ide/src/app/compiler/compiler-imports.js

@@ -88,7 +88,7 @@ module.exports = class CompilerImports extends Plugin {
       (error, content, cleanUrl, type, url) => {
         if (error) return cb(error)
         if (this.fileManager) {
-          const workspace = this.fileManager.getProvider('workspace')
+          const workspace = this.fileManager.currentFileProvider()
           const path = targetPath || type + '/' + cleanUrl
           if (workspace) workspace.addExternal(path, content, url)
         }

apps/remix-ide/src/app/files/remixDProvider.js

 'use strict'
 var EventManager = require('../../lib/events')
+const FileProvider = require('./fileProvider')
 
-module.exports = class RemixDProvider {
+module.exports = class RemixDProvider extends FileProvider {
   constructor (appManager) {
-    this.event = new EventManager()
+    super('localhost')
     this._appManager = appManager
-    this.type = 'localhost'
     this.error = { EEXIST: 'File already exists' }
     this._isReady = false
     this._readOnlyFiles = {}