diff --git a/README.md b/README.md
index 319919a..e5e6590 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@ function getIPs(callback){
         var lines = pc.localDescription.sdp.split('\n');
 
         lines.forEach(function(line) {
-            if (line.startsWith('a=candidate:')) {
+            if(line.indexOf('a=candidate:') === 0){
                 handleCandidate(line);
             }
         });
diff --git a/index.html b/index.html
index 02a47c0..6993167 100644
--- a/index.html
+++ b/index.html
@@ -99,7 +99,7 @@
                     var lines = pc.localDescription.sdp.split('\n');
 
                     lines.forEach(function(line){
-                        if(line.startsWith('a=candidate:'))
+                        if(line.indexOf('a=candidate:') === 0)
                             handleCandidate(line);
                     });
                 }, 1000);