diff --git a/js/main.js b/js/main.js
index 8a9af32..d7030d5 100644
--- a/js/main.js
+++ b/js/main.js
@@ -22,7 +22,9 @@ function sef(filename) {
     new Audio("assets/music/" + filename + ".mp3").play();
 }
 $("#playBegin").click(function () {
-    document.getElementsByTagName("html")[0].requestFullscreen();
+    try {
+        document.getElementsByTagName("html")[0].requestFullscreen();
+    } catch(e){}
     audiosegm();
     $(this).fadeOut();
 });
@@ -104,4 +106,4 @@ $(".ans").click(function () {
     }
     displayQuestion();
     $("#correct").fadeOut();
-});
\ No newline at end of file
+});