PUBLIC MARKS with search peculiarities

his article is about some Google AppEngine problems (or peculiarities) which might not be obvious for newcomers.

All interactive programs provide two basic functions: obtaining user input and displaying the results. Web applications implement this behavior using two HTTP methods: POST and GET respectively. This simple protocol gets broken when application returns web page in response to POST request. Peculiarities of POST method combined with idiosyncrasies of different browsers often lead to unpleasant user experience and may produce incorrect state of server application. This article shows how to design a well-behaved web application using redirection.

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