MooTools Depender, Safari, etags and 412 Precondition Failed

Posted on by 
/**
* This replaces the default MooTools more Depender.request function to use
* HTTP "get" rather than "post".
*
* When sending requests for files via the depender, I was finding that Safari
* wasn't getting and re-evaluating them the second time I visited the page.
* This was because an etag was sent with each script.
*
* Safari responds to etags properly and adds "If-None-Match" and
* "If-Modified-Since" headers to another request for the same file. This makes
* Apache respond with a 412 status (Precondition Failed) as it should do for
* "post" requests (according to RFC 2616).
*
* Unfortunately Safari doesn't then deal with the 412 as it does with a 304
* (Not Modified). It doesn't grab what it has in the cache and put it in the
* response, it gives you nothing.
*
* For "get" requests, Apache has to respond with a 304, or 200 or whatever, but
* not 412. So we change the request method so we don't have to deal with 412.
*/
Depender.request = function(url, callback){
    new Request.JSON({
        url: url,
        secure: false,
        onSuccess: callback,
        method:'get'
    }).send();
};

24,935 thoughts on “MooTools Depender, Safari, etags and 412 Precondition Failed”

  3. Роскошные шторы для любого интерьера сшить шторы на заказ сшить шторы на заказ . Ткацкий

  4. недорогой интернет новосибирск novosibirsk-domashnij-internet002.ru домашний интернет подключить новосибирск

  6. Excellent blog! Do you have any hints for aspiring writers?
    I’m hoping to start my own website soon but
    I’m a little lost on everything. Would you recommend starting with a free platform
    like WordPress or go for a paid option? There are so many options out there that I’m
    totally overwhelmed .. Any tips? Kudos!

  7. Элитные шторы на заказ для взыскательных клиентов сшить шторы на заказ сшить шторы на заказ . Ткацкий

  9. Thanks for any other informative web site. The place else could I am getting that type of information written in such a
    perfect method? I’ve a mission that I’m just now working on, and I have been on the look out for such info.