content-url-broken-image-with-alt-text.html

<!DOCTYPE html>
<style>
#img {content:url('ImageDoesNotExist')}
</style>
<img id='img' alt='test image'>
<p>crbug.com/516239: images set by content: url() should behave correctly with alt text.

chromium/third_party/blink/web_tests/images/content-url-broken-image-with-alt-text.html