diff --git a/src/android/com/crypt/cordova/DecryptResource.java b/src/android/com/crypt/cordova/DecryptResource.java
index 2cd9b51..fde3c45 100644
--- a/src/android/com/crypt/cordova/DecryptResource.java
+++ b/src/android/com/crypt/cordova/DecryptResource.java
@@ -14,6 +14,7 @@
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStreamReader;
+import java.util.regex.Pattern;
 
 import javax.crypto.Cipher;
 import javax.crypto.SecretKey;
@@ -28,12 +29,8 @@ public class DecryptResource extends CordovaPlugin {
   private static final String CRYPT_KEY = "";
   private static final String CRYPT_IV = "";
 
-  private static final String[] CRYPT_FILES = {
-    ".htm",
-    ".html",
-    ".js",
-    ".css",
-  };
+  private static final String[] INCLUDE_FILES = new String[] { };
+  private static final String[] EXCLUDE_FILES = new String[] { };
 
   private String URL_PREFIX;
   private String launchUri;
@@ -102,12 +99,23 @@ private String tofileUri(String uri) {
     return uri;
   }
 
-  private boolean isCryptFiles(String uri) {
-    for (String ext: CRYPT_FILES) {
-      if (uri.endsWith(ext)) {
-        return true;
+    private boolean isCryptFiles(String uri) {
+      String checkPath = uri.replace("file:///android_asset/www/", "");
+      if (!this.hasMatch(checkPath, INCLUDE_FILES)) {
+        return false;
+        }
+      if (this.hasMatch(checkPath, EXCLUDE_FILES)) {
+        return false;
       }
+      return true;
+    }
+
+    private boolean hasMatch(String text, String[] regexArr) {
+      for (String regex : regexArr) {
+        if (Pattern.compile(regex).matcher(text).find()) {
+          return true;
+        }
+      }
+      return false;
     }
-    return false;
-  }
 }