Merge pull request #67 from malinushj/master

fixed broken backwards compatibility

Author: Va1

lib/BrowserSyncPlugin.js

@@ -9,7 +9,7 @@ const defaultPluginOptions = {
 }
 
 class BrowserSyncPlugin {
-  constructor (browserSyncOptions, pluginOptions) {
+  constructor(browserSyncOptions, pluginOptions) {
     this.browserSyncOptions = Object.assign({}, browserSyncOptions)
     this.options = Object.assign({}, defaultPluginOptions, pluginOptions)
 
@@ -18,7 +18,7 @@ class BrowserSyncPlugin {
     this.isBrowserSyncRunning = false
   }
 
-  apply (compiler) {
+  apply(compiler) {
     const watchRunCallback = () => {
       this.isWebpackWatching = true
     }
@@ -47,7 +47,10 @@ class BrowserSyncPlugin {
       compiler.hooks.compilation.tap(BrowserSyncPlugin.name, compilationCallback)
       compiler.hooks.done.tap(BrowserSyncPlugin.name, doneCallback)
     } else {
-      compiler.plugin('watch-run', watchRunCallback)
+      compiler.plugin('watch-run', (watching, callback) => {
+        watchRunCallback()
+        callback(null, null)
+      })
       compiler.plugin('compilation', compilationCallback)
       compiler.plugin('done', doneCallback)
     }