diff --git a/libraries/proguard-android-webkit-javascript-interface.pro b/libraries/proguard-android-webkit-javascript-interface.pro
new file mode 100644
index 0000000..f02b748
--- /dev/null
+++ b/libraries/proguard-android-webkit-javascript-interface.pro
@@ -0,0 +1,4 @@
+-keep @android.webkit.JavascriptInterface class *
+-keepclassmembers class * {
+    @android.webkit.JavascriptInterface *;
+}
\ No newline at end of file