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”

  1. Biography of actress http://anya-taylor-joy-az.com Anya Taylor-Joy: personal life wedding with Malcolm McRae husband relationship with parents. Filmography roles in films and TV series The Witch The Queens Walk new projects and the latest news for 2024.

  2. Erling Haaland erling-haaland-azerbaijan.com all personal trophies and awards. Erling Haaland – biography of the striker on the football field of Manchester City and the Norwegian national team.

  3. Biography of actress Anya Taylor-Joy anya-taylor-joy-az com personal life wedding with Malcolm McRae husband relationship with parents. Filmography roles in films and TV series The Witch The Queens Walk new projects and the latest news for 2024.

  4. Discover the world of Belgian kevin de bruyne azerbaijan com midfield maestro Kevin De Bruyne known for his unparalleled playmaking skills.

  5. Welcome to the Stephen Curry stephen curry azerbaycan com fan site Learn about his greatness and inspiring success story.

  6. Join the Pedri Fan Hub pedri-azerbaijan com dedicated to celebrating the meteoric rise of this young football star. Explore exclusive content updates and lively discussions about Pedris journey from humble beginnings to becoming a regular for Barcelona and the Spanish national team.

  8. Предлагаем услуги профессиональных инженеров офицальной мастерской. Еслли вы искали ремонт iphone xs max адреса можете посмотреть на сайте: ремонт iphone xs max Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом

  10. Предлагаем услуги профессиональных инженеров офицальной мастерской. Еслли вы искали ремонт iphone xs max сервис можете посмотреть на сайте: ремонт iphone xs max цены Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом

  11. Cryptocurrency trading platform bitqt with artificial intelligence. Modern algorithms automatically analyze trends and minimize risks. Ideal for both beginners and experienced traders. Manage your assets with maximum efficiency and minimum effort.

  14. Оперативная помощь на дороге https://angeldorog.by/evakuator-minsk/ услуги эвакуатора грузовой и легковой шиномонтаж а также грузоперевозки фурами по доступным ценам. Работаем круглосуточно быстро реагируем и гарантируем надежность. Звоните в любое время – решим вашу проблему

  16. Предлагаем услуги профессиональных инженеров офицальной мастерской. Еслли вы искали ремонт iphone se 2020 можете посмотреть на сайте: ремонт iphone se 2020 цены Наши мастера оперативно устранят неисправности вашего устройства в сервисе или с выездом на дом

  17. Оперативная помощь на дороге https://angeldorog.by услуги эвакуатора грузовой и легковой шиномонтаж а также грузоперевозки фурами по доступным ценам. Работаем круглосуточно быстро реагируем и гарантируем надежность. Звоните в любое время – решим вашу проблему

  19. Find out all about Kylie Jenner kylie-jenner-azerbaijan.com at Kylie Jenner the ultimate fan site for the latest updates on her fashion line beauty tips and personal life.

  20. Discover the ultimate hub zinedine-zidane-azerbaijan com for all things Zinedine Zidane. Dive into in-depth analysis of Zidanes illustrious career from his legendary performances to his coaching triumphs.