Merge pull request #406 from ethereum/fixSwitchProvider

Fix provider init

src/app.js

@@ -499,9 +499,9 @@ var run = function () {
 
   var transactionDebugger = new Debugger('#debugger', editor, compiler, executionContext.event, switchToFile, offsetToLineColumnConverter)
   transactionDebugger.addProvider('vm', executionContext.vm())
-  transactionDebugger.switchProvider('vm')
   transactionDebugger.addProvider('injected', executionContext.web3())
   transactionDebugger.addProvider('web3', executionContext.web3())
+  transactionDebugger.switchProvider(executionContext.getProvider())
 
   var udapp = new UniversalDApp(executionContext, {
     removable: false,

src/app/execution-context.js

@@ -71,6 +71,10 @@ function ExecutionContext () {
   this.event = new EventManager()
   var executionContext = injectedProvider ? 'injected' : 'vm'
 
+  this.getProvider = function () {
+    return executionContext
+  }
+
   this.isVM = function () {
     return executionContext === 'vm'
   }