Databases
StackOverflow2013
Postsdbo
POnew image makes http request even though cached?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POnew image makes http request even though cached?
    primarykey
    data
    text
    <p>I have a javascript slide show that creates the next slide dynamically and then moves it into view. Since the images are actually sprites, the src is transparent.png and the actual image is mapped via <code>background:url(</code>.. in css.</p> <p>Every time (well, most of the time) the script creates a <code>new Element</code>, Firefox makes an http request for transparent.png. I have a far-future expires header, and Firefox is respecting all other files' expiries.</p> <p>Is there a way to avoid these unnecessary requests. Even though the server is returning <code>304 unmodified</code> responses, it would be nice if Firefox would respect the expiries on dynamically created images.</p> <p>I suspect that if I injected a simple string instead of using <code>new Element</code>, this might solve the problem, but I use some methods on Prototypes extended <code>Element</code> object, so I would like to avoid a bunch of html strings in my js file.</p> <p>This is a nit-picky question, but I'm working on front-end optimization now, so I thought I would address it.</p> <p>Thanks.</p> <p>@TJ Crowder Here are two images: <a href="http://tinypic.com/r/29kon45/5" rel="nofollow noreferrer">http://tinypic.com/r/29kon45/5</a>. The first shows that the requests for trans.png are proliferating. The second shows an example of the headers. Thanks</p> <p>@all Just to reiterate: what's real strange is that it only makes these unnecessary requests about half the time, even though all images are created via identical logic.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USIonuț G. Stan
    1. USjoshs
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COWould you quote the URL you use for the image (leave out the server name if you like) and the headers sent by the server when the image actually does get downloaded? Perhaps there's an issue with the expiry headers or something.
      singulars
      1. POnew image makes http request even though cached?
      1. UST.J. Crowder
    2. COi uploaded an image above
      singulars
      1. POnew image makes http request even though cached?
      1. USjoshs
    3. CODo you use inline styling for the background?
      singulars
      1. POnew image makes http request even though cached?
      1. USIonuț G. Stan
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload