NYCPHP Meetup

[betenoir at echonyc.com]

I'm trying to determine whether the user is coming to a given page (call it
pageB.php) from the previous page in the sequence (pageA.php) or off-site.

While I can access window.history.length,  i cannot  access a given key in
that array:

"Error: uncaught exception: Permission denied to get property
History.previous"

or

"Error: uncaught exception: Permission denied to call method History.item"

FWIW I'm using php and  while I can determine the
$_SERVER['REQUEST_METHOD'] this technique is not infallible.  Apparently
when you hit "back" (or select from the "Go" menu) some browsers use the
cached version of page -- which means they return  pageA.php and not
pageX.html

Aaaaarrrrgggghhhh!!!!!

Suggestions?

Clyde
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