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();
};

13,568 thoughts on “MooTools Depender, Safari, etags and 412 Precondition Failed”

  1. I have been browsing online more than 4 hours
    today, yet I never found any interesting article like yours.
    It’s pretty worth enough for me. Personally,
    if all webmasters and bloggers made good content as you did,
    the net will be a lot more useful than ever before.

  2. Hello There. I discovered your weblog using msn. That is a really
    smartly written article. I will make sure to bookmark it and come back to read extra of your useful
    information. Thank you for the post. I’ll certainly comeback.

  3. На сайте https://bzdostup.ru/ оформите онлайн-заявку и получите скидку 3% на бетон, растворы. Предприятие в течение длительного времени занимается производством, а также оперативной доставкой продукции. Но также можно воспользоваться и самовывозом. А если вы произведете оплату наличными, то можете рассчитывать на хорошую скидку. Прямо сейчас ознакомьтесь с прайс-листом, чтобы узнать стоимость и заказать товары в требующемся количестве. Бетон отличается всеми важными техническими характеристиками, наделен эталонным качеством.

  4. Hi there i am kavin, its my first time to commenting anyplace, when i read this article i thought i
    could also make comment due to this sensible paragraph.

  5. I do not even know how I ended up here, but I thought this post
    was great. I don’t know who you are but certainly you’re going to a famous blogger if
    you aren’t already ;) Cheers!

  6. Great blog here! Also your website loads up fast!
    What host are you using? Can I get your affiliate link to your host?
    I wish my site loaded up as fast as yours lol

  7. Undeniably consider that that you stated. Your favorite reason appeared to be at the web the simplest thing to have in mind of.
    I say to you, I certainly get irked at the same time as other folks
    consider concerns that they just don’t recognize about.

    You controlled to hit the nail upon the highest and also outlined out
    the entire thing with no need side effect , other people could take a signal.
    Will probably be back to get more. Thank you

  9. Fine way of describing, and nice piece of writing to take information concerning my presentation focus, which i am going to
    deliver in college.

  10. I would like to thank you for the efforts you have put in penning this website.
    I’m hoping to check out the same high-grade blog posts from you later
    on as well. In truth, your creative writing
    abilities has encouraged me to get my own blog now ;)

  12. Туристическая компания ГРУПСПБ организует информативные и интересные экскурсии по Санкт-Петербургу с выездом в пригороды и другие города России. В маршрутах — знаковые достопримечательности, музеи, культурные объекты и скрытые уголки города. Опытные гиды подают информацию увлекательно, с “изюминкой”, поэтому взрослые и дети останутся в восторге. Экскурсии по Петербургу проводятся на современных автобусах. Экскурсии с https://www.groupspb.ru/ – идеальный способ узнать город с новой стороны.

  14. I am curious to find out what blog platform you’re working with?
    I’m experiencing some small security issues with my latest site and I’d
    like to find something more secure. Do you have any recommendations?

  17. you are really a good webmaster. The web site loading pace
    is incredible. It sort of feels that you are doing any distinctive trick.

    In addition, The contents are masterwork.
    you’ve done a magnificent process in this subject!

  18. Greetings from Los angeles! I’m bored to tears at work so I decided to check out your website on my iphone during lunch break.
    I enjoy the knowledge you present here and can’t wait to take a look when I get home.
    I’m surprised at how fast your blog loaded on my phone ..
    I’m not even using WIFI, just 3G .. Anyhow,
    good blog!

  20. Its like you read my mind! You seem to know a lot about this, like you
    wrote the book in it or something. I think that you can do with some
    pics to drive the message home a little bit, but other than that, this is
    excellent blog. A fantastic read. I’ll definitely be back.

  21. I need to to thank you for this very good read!!
    I certainly enjoyed every bit of it. I have got you book marked to check out new stuff
    you post…

  22. Hi, I wish for to subscribe for this webpage to get latest updates, so where can i do it please help.

  23. Pretty nice post. I just stumbled upon your weblog and wished to say that I’ve really loved browsing your weblog posts.
    After all I will be subscribing on your rss feed and I am hoping you write once more very soon!

  24. Terrific work! That is the type of information that should be shared across the
    web. Disgrace on the seek engines for not positioning this publish upper!
    Come on over and seek advice from my site .
    Thank you =)

    my webpage – Toto Macau

  25. I always spent my half an hour to read this website’s articles every day
    along with a mug of coffee.

  26. Woah! I’m really digging the template/theme of this site.
    It’s simple, yet effective. A lot of times it’s tough to
    get that “perfect balance” between usability and appearance.
    I must say you have done a fantastic job with this.
    Additionally, the blog loads extremely quick for me on Firefox.

    Exceptional Blog!

  27. Hi there, after reading this amazing article i am also cheerful to
    share my familiarity here with colleagues.

  28. Heya! I just wanted to ask if you ever have any trouble
    with hackers? My last blog (wordpress) was hacked and I ended up losing many
    months of hard work due to no data backup. Do you have any methods to stop hackers?

  29. I’ve been surfing online greater than 3 hours lately,
    but I by no means discovered any fascinating article like
    yours. It’s pretty value enough for me. In my view, if all web owners and bloggers made just
    right content material as you did, the net will likely be a lot more
    useful than ever before.

  30. Good day! I could have sworn I’ve been to this blog before but after looking
    at some of the articles I realized it’s new to me. Anyhow, I’m certainly pleased I came across it and I’ll
    be book-marking it and checking back often!

  31. It’s a pity you don’t have a donate button! I’d most certainly donate to this fantastic blog!
    I suppose for now i’ll settle for book-marking and adding your RSS feed to
    my Google account. I look forward to fresh updates and will talk about this website with
    my Facebook group. Talk soon!

  32. My brother suggested I might like this website. He was entirely right.
    This post truly made my day. You can not imagine just how much time I had spent for
    this information! Thanks!

  35. Wow, fantastic blog layout! How long have you been blogging for?

    you make blogging look easy. The overall look of your site is great, as well as the content!

  36. A person essentially assist to make critically articles I
    might state. That is the very first time I frequented your website page and thus far?

    I surprised with the research you made to create this
    particular publish extraordinary. Magnificent task!

  37. Oh my goodness! Amazing article dude! Thank you so much, However I am encountering problems with your RSS.
    I don’t understand the reason why I can’t subscribe to it.
    Is there anybody having identical RSS problems?
    Anybody who knows the answer can you kindly respond?
    Thanks!!

  38. You actually make it appear really easy together
    with your presentation but I in finding this matter to be really something that I feel I would never understand.
    It seems too complex and extremely huge for me. I am looking forward
    to your next put up, I will try to get the hold of it!

  41. Fantastjc read! The wayy you broke things downn is very helpful, especially for those of us inn
    business.

    Onne key takeaway was your point on leadership.
    It really gave me somethingg to think about.

    Appreciate the knowledge you shared.

  43. Oh my goodness! Amazing article dude! Thank you, However I am experiencing troubles with your RSS.
    I don’t understand the reason why I can’t join it. Is there anybody else
    getting the same RSS problems? Anyone that knows the solution can you kindly respond?
    Thanks!!

  44. Oh my goodness! Impressive article dude! Thank you, However I am having troubles with your
    RSS. I don’t know why I cannot join it. Is there anyone else
    having identical RSS issues? Anyone that knows the answer will you kindly respond?
    Thanx!!

  45. It’s a pity you don’t have a donate button! I’d without a doubt donate to this outstanding blog!
    I guess for now i’ll settle for book-marking and adding your RSS feed to my
    Google account. I look forward to new updates and
    will share this website with my Facebook group.
    Talk soon!

  46. link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi
    link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno
    grafilink porno grafilink porno grafi link porno grafilink
    porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno
    grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno grafi
    link porno grafilink porno grafilink porno grafi link porno grafilink
    porno grafilink porno grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno grafi link
    porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno
    grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno
    grafilink porno grafilink porno grafi link porno grafilink porno
    grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link
    porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link
    porno grafilink porno grafilink porno grafi link porno grafilink
    porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink
    porno grafilink porno grafi link porno grafilink porno grafilink porno
    grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink
    porno grafilink porno grafi link porno grafilink porno grafilink
    porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link
    porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno
    grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi link porno grafilink porno grafilink porno grafi

  47. Hey fellow traders Just wanted to share a quick note about dayscafx.jp — I started using it more regularly and I’m honestly impressed. It’s not just charts; they provide volatility metrics movement ranges and even highlight “hot” currency pairs for the day. For someone doing daily or short-term trading it’s super useful to glance at in the morning and spot where the action might be. It’s quickly become part of my daily prep routine. Anyone else using it? Would love to hear how you integrate it into your workflow or if there are any features I’ve missed.

  50. Empowering Amateur Radio Enthusiasts, Echolink Florida connects you
    to the best amateur radio services. Discover our
    conference server located in Colorado Springs,
    Colorado, powered by AT&T First Net Fiber Network.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>