third_party/blink/renderer/core/testing/data/viewport/viewport-111.html - chromium/src - Git at Google

 <head>
     <title>Empty property name not allowed (" ==x width=400")</title>
     <meta name="viewport" content=" ==x width=400">
 </head>
 <body></body>
	<head>
	<title>Empty property name not allowed (" ==x width=400")</title>
	<meta name="viewport" content=" ==x width=400">
	</head>
	<body></body>