The length of scheme is at least five characters even when the scheme has 'web+' prefix

Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp

Index: Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
diff --git a/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp b/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
index b0d568cc0be973b8515868f83f1af692543b379e..df33faf653a043e35e7e35c781a7440d448ab64e 100644
--- a/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
+++ b/Source/modules/navigatorcontentutils/NavigatorContentUtils.cpp
@@ -106,7 +106,8 @@ static bool isProtocolWhitelisted(const String& scheme)
 static bool verifyProtocolHandlerScheme(const String& scheme, ExceptionState& es)
 {
     if (scheme.startsWith("web+")) {
-        if (isValidProtocol(scheme))
+        // The specification requires that the length of scheme is at least five characteres (including 'web+' prefix).
+        if (scheme.length() >= 5 && isValidProtocol(scheme))
             return true;
         es.throwDOMException(SecurityError);
         return false;