The DOMTimeStamp typedef is not "EpochTimeStamp", so Geolocation's GeolocationPosition's timestamp attribute needs a type change. Spec change: https://github.com/w3c/geolocation-api/pull/104 Related to https://bugs.webkit.org/show_bug.cgi?id=231496
s/is not/is now
*** This bug has been marked as a duplicate of bug 231496 ***