I believe pre-iOS4, mobile safari did not support the additional
timeout parameter in geolocation calls correctly.

Make sure your code does not contain a timeout of 0 - while OS 3.1.3
would ignore this value and your app would work, iOS4 now correctly
applies it (as far as I can tell). Either set a timeout of something
other than zero, or remove the parameter and let the browser set the
default timeout period.

I encountered this in one of my apps after upgrading to iOS4, and
changing this fixed it instantly.

Regards,

Alex

On Jun 23, 2:36 am, Scott Finkelstein <[email protected]> wrote:
> Has anyone here noticed iOS4 breaking their Geolocation web apps? I
> have a page on our web app that plots the users location on a Google
> Map (via the "navigator.geolocation" and "geo_position_js" APIs,
> depending on the user agent). It worked perfectly in iPhone OS 3.1.3,
> but once I updated to iOS 4 I've been getting a "Timeout Expired"
> error message. It worked on my colleague's phone (she didn't update to
> iOS 4 yet) and it also worked on my Desktop via Safari 5.
>
> Thanks in advance,
>
> - Scott

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