diff --git a/test/unit/support.js b/test/unit/support.js
index 1d50c1124..4cac9d96d 100644
--- a/test/unit/support.js
+++ b/test/unit/support.js
@@ -351,7 +351,7 @@ testIframeWithCallback(
 			"style": true,
 			"submit": true
 		};
-	} else if ( /iphone os 9/i.test( userAgent ) ) {
+	} else if ( /iphone os 9_/i.test( userAgent ) ) {
 		expected = {
 			"ajax": true,
 			"attributes": true,
@@ -385,7 +385,7 @@ testIframeWithCallback(
 			"style": true,
 			"submit": true
 		};
-	} else if ( /iphone os 8/i.test( userAgent ) ) {
+	} else if ( /iphone os 8_/i.test( userAgent ) ) {
 		expected = {
 			"ajax": true,
 			"attributes": true,
@@ -419,7 +419,7 @@ testIframeWithCallback(
 			"style": true,
 			"submit": true
 		};
-	} else if ( /iphone os 7/i.test( userAgent ) ) {
+	} else if ( /iphone os 7_/i.test( userAgent ) ) {
 		expected = {
 			"ajax": true,
 			"attributes": true,