<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Security-Policy" content="img-src 'self'">
</head>
<body>
<p>This tests that the alternative text of a data URL image is rendered when the CSP policy of the page blocks its load.</p>
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAABACAYAAACqaXHeAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAACPSURBVHhe7dfBDcAwDMSw23/oJMgc4qMDtC4sc2e75Wfll//v7gP4A+wAS1AFyntABcrTdwc4hFyCTmEVUAEWYAEWKO8BFShPnwVYgAVYQAVUgAVYgAXKe0AFytNnARZgARZQARVgARZggfIeUIHy9FmABViABVRABViABVigvAdUoDx9FmABFmABFahX4AENatHSskZSEgAAAABJRU5ErkJggg==" width="50" height="50" alt="alt text">
</body>
</html>