Re: Favicon

d43m0n AT shaw DOT ca wrote:
J.O. Aho wrote:
The Eclectic Electric wrote:

To be honest, it was someone else's idea to interrogate the accept header
and I'm not sure whether his or my interpretation of how HTTP works is
correct (probably his!). He was implying that the browser sends up
individual HTTP requests for each element of the page, which would mean it
should indeed be possible to catch whether or not it was possible to send a
gif for the favicon.
If my mind don't fool me, even a system that don't gif would request the gif
file if it's linked from the html and it's first locally at the client that
you will know if the gif was displayed or not, the browser won't send a
special "header" telling the web server what it's capable of doing.

Ok, it looks like I have to spill it out for you.

I think you may need to read a bit slower so you won't miss things...


First, by default, Internet Explorer will request for a favicon.ico in
the root of the web directory, or atleast at the root of the url. For
instence, "http://google.ca/favicon.ico";.

Now, HTML code will redirect the browser to where the favicon is,
either relitive or absolute location.

<LINK REL="SHORTCUT ICON"
HREF="protocol://domain.ext/directory/mypage.ico">

Now, if you wanted to know that, this was the wrong group to post your
question in. However, to take it the step further, you could make that
ico to php. As long as the return data is binary/base64, it will use it
for the image. Now we all should know that fread is binary safe, so we
have no worry about that.

As I pointed out before, the browser won't tell the web server what it can and can't, you need to keep track of browsers in your php code and match the current clients version to your list to know what is the most advanced it can handle in favorite icons.


//Aho
.

Relevant Pages

  • Re: Password Change Prompt breaks ASP.NET pages
    ... on the "Page can not be found" error, you see HTTP 404 File Not Found ... the browser and am prompted for basic authentication. ... On some of the other pages, clicking Refresh does not resolve the issue. ... When I run the applications on my workstation (of course the web server is ...
    (microsoft.public.dotnet.framework.aspnet.security)
  • Re: Favicon
    ... He was implying that the browser sends up individual HTTP requests for each element of the page, which would mean it should indeed be possible to catch whether or not it was possible to send a gif for the favicon. ...
    (alt.php)
  • Re: Favicon
    ... He was implying that the browser sends up ... individual HTTP requests for each element of the page, ... If my mind don't fool me, even a system that don't gif would request the gif ... Now, HTML code will redirect the browser to where the favicon is, ...
    (alt.php)
  • Re: Simple Questions re HTTPS
    ... > transferred between the browser and the web server increase as a ... i.e. is it larger than when it is sent over HTTP. ... The total amount of data transfered over the connection is ...
    (comp.security.misc)
  • Re: How to write something to a html textfield and send it?
    ... > No need for controlling any particular browser. ... I'm not familiar with HTTP user ... and building the request in your program. ... The server doesn't know anything about a textfield; ...
    (comp.programming)