I'd like to understand the logic behind how the background-size and transitions are implemented in v51.
In v50, this functioned like it does currently in every other current browser. But, now (in v51) there seems to be this '-webkit-background-size' property which behaves differently than 'background-size' does. A transition for background-size (using percents) is ignored, but not for '-webkit-background-size'.
In v53 (dev version), it works the way it did in v50.
Are there a set of reasons why this change has been made for v51?
Thanks,
NG