diff --git a/src/atom-environment.coffee b/src/atom-environment.coffee
index 65b47a74e..da4f768a2 100644
--- a/src/atom-environment.coffee
+++ b/src/atom-environment.coffee
@@ -757,13 +757,10 @@ class AtomEnvironment extends Model
 
       {line, column, source} = mapSourcePosition({source: url, line, column})
 
-      mappedURL = ''
       if url is '<embedded>'
-        mappedURL = source
-      else
-        mappedURL = url
+        url = source
 
-      eventObject = {message, originalUrl: url, url: mappedURL, line, column, originalError}
+      eventObject = {message, url, line, column, originalError}
 
       openDevTools = true
       eventObject.preventDefault = -> openDevTools = false
@@ -773,7 +770,7 @@ class AtomEnvironment extends Model
       if openDevTools
         @openDevTools().then => @executeJavaScriptInDevTools('DevToolsAPI.showPanel("console")')
 
-      @emitter.emit 'did-throw-error', {message, originalURL: url, url: mappedURL, line, column, originalError}
+      @emitter.emit 'did-throw-error', {message, url, line, column, originalError}
 
   uninstallUncaughtErrorHandler: ->
     @window.onerror = @previousWindowErrorHandler