On the other hand, there are limitations to GET that will not work with most 
HTML forms - that's why POST is used instead.

-Adrian


--- On Mon, 1/19/09, Raj Saini <rajsa...@gmail.com> wrote:

> From: Raj Saini <rajsa...@gmail.com>
> Subject: Re: F5 ( refresh of browser ) causes another item to be added to the 
> cart
> To: user@ofbiz.apache.org
> Date: Monday, January 19, 2009, 7:25 PM
> In HTTP protocol GET method is considered idempotent that is
> multiple 
> calls to the same resource should result in the same
> result. In Contrast 
> POST method is no idempotent and therefore if a URL with
> POST method is 
> refreshed browsers will through a warning message.
> 
> Therefore, we should use GET method for the safe operations
> such as 
> fetching a list of records based on input parameters and
> POST for 
> transaction which can change the state of application for
> example 
> inserting a record in database.
> 
> Thanks,
> 
> Raj
> 
> Adrian Crum wrote:
> > Most browsers have a warning popup window that tells
> the user that a screen refresh will result in reposting
> data. Maybe you could supplement that with a similar warning
> on the web page itself.
> >
> > -Adrian
> >
> >
> > --- On Mon, 1/19/09, Rees Watkins
> <gat.of...@yahoo.co.uk> wrote:
> >
> >   
> >> From: Rees Watkins <gat.of...@yahoo.co.uk>
> >> Subject: Re: F5 ( refresh of browser ) causes
> another item to be added to the cart
> >> To: user@ofbiz.apache.org
> >> Date: Monday, January 19, 2009, 11:13 AM
> >> Hi
> >>
> >> I have customised ofbiz for the travel industry. I
> do not
> >> hold any
> >> product. All product sold is reserved and booked
> on a 3rd
> >> party site.
> >> Generally cancellation has heavy penalties. In the
> even a
> >> customer buys
> >> an additional item by mistake one of the parties
> will lose
> >> 50 - 100% on
> >> a refund. I would like to customise my ofbiz to
> prevent
> >> items been
> >> added on refresh. Does anyone have any suggestion
> or
> >> comments on how
> >> best to do this?
> >>
> >> Thanks
> >> Rees
> >>     
> >
> >
> >       
> >
> >


      

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