https://drafts.csswg.org/css-backgrounds/#propdef-border-image-outset



What steps will reproduce the problem?
Set border-image-outset to 'initial' and read computed value.
http://jsfiddle.net/ericwilligers/14ay8mqt/

What is the expected result?
The initial value should be "0", according to the spec.
Edge and Firefox correctly report "0" as the initial value.

What happens instead?
Blink and Safari currently report "0px" as the initial value.