chore: optimize estraverse browser js import
diff --git a/src/editor/sandbox/estraverse.browser b/src/editor/sandbox/estraverse.browser.js
similarity index 100%
rename from src/editor/sandbox/estraverse.browser
rename to src/editor/sandbox/estraverse.browser.js
diff --git a/src/editor/sandbox/index.js b/src/editor/sandbox/index.js
index 56ee418..77d01e8 100644
--- a/src/editor/sandbox/index.js
+++ b/src/editor/sandbox/index.js
@@ -3,7 +3,7 @@
 import setup from './setup';
 import loopController from 'raw-loader!./loopController';
 import showDebugDirtyRect from 'raw-loader!../../dep/showDebugDirtyRect';
-import estraverse from 'raw-loader!./estraverse.browser';
+import estraverse from '!!raw-loader!./estraverse.browser';
 
 export function createSandbox(
   container,