xml:base for style attribute has been disabled

Published: | Categories: CSS, Miscellaneous


The xml:base support for the CSS style attribute, as seen below, has been disabled by default with Firefox 55. Given that the xml:base attribute deprecated since Firefox 53 is not supported by any other browsers, the compatibility risk should be very low.

<div xml:base="https://example.com/"

Update: The attribute support has been completely removed with Firefox 66.