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I have a jsf snippet:
<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:ui="http://java.sun.com/jsf/facelets">
<!-- Yandex.Metrika -->
<img src="//mc.yandex.ru/watch/xxx" alt=""/>
<!-- /Yandex.Metrika -->
</ui:composition>
But when I use it, web-client get HTML page whithout empty alt attribute in img element:
<!-- Yandex.Metrika -->
<img src="//mc.yandex.ru/watch/xxx" />
<!-- /Yandex.Metrika -->
As result my document has validation error (
How can I solve this problem?
851
Answer. Alt tags are used to describe the contents of images, but some images don't convey any meaning and are therefore considered "decorative." Decorative images do not need to be announced by the screen reader, so if the alt attribute is empty (alt="", aka a "null" tag) it will not be announced to the user.
The alt attribute is the text equivalent of the image, which means that it should only be empty if the meaning of the image is already encapsulated by the surrounding text.
You could use the JSF graphicImage component, which does render the empty alt attribute.
For Example:
<h:graphicImage value="#{resource['images:image1.png']}" alt="" />
or
<h:graphicImage value="http://somedomain.com/somecontext/xxx/image1.png" alt="" />
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