Warnings are on all browser versions.. Location was a silly one though, you had to invoke the API to see the error, if you never actaully had devtools open whe

Warnings are on all browser versions.. Location was a silly one though, you had to invoke the API to see the error, if you never actaully had devtools open when you called the API then you wouldn't know there was an issue. There has been a warning about sync 3rd party scripts injected with document.write for quite a while now..