Re: CGI script parameter error.
- From: Peter <pete.ivesAll_stRESS@xxxxxxxxxxxxxxxx>
- Date: Wed, 22 Dec 2010 17:30:47 -0000
In article <Xns9E53C4189FD9Brespondinvalidinvali@xxxxxxxxxxxx>,
respond@xxxxxxxxxxxxxxx says...
I am having a little problem with my ISP's counter script. The script
works perfectly with:
Internet Explorer 8, FireFox 3.6.11, Opera 10.63, and Chrome 7.0.
However, with Safari 5.0.2 and Konqueror 4.4.4 it does not.
Here is the url of the script itself:
http://pages.videotron.com/cgi-bin/Count.cgi?
display=counter|df=vldowtzc.dat|incr=0|dd=B|md=7|ft=5|frgb=FFFF00
This CGI script is served in the form of a GIF image. With the
various parameters specified in the query section, (i.e. the "dd=.."
and "md=..." arguments) it should show up as a 7-digit odometer-style
number with a value of 507 all within a yellow border.
First, I do not understand why the url alone by itself does not work
directly as the target for a web browser. This happens for ALL 6
browsers. If you use the url above, instead of the proper image, you
will see instead a 6 digit green seven-segment number of value
"888888" (90x20 px). This indicates that the input parameters (df,
incr, dd, ft, frgb) are not received okay by the server, but the GIF
image that is generated *is* received okay by the browser. (You will
get a similar display if you put improper parameter values in the
url.)
But the real problem is that when you make a reference to the url
within a web page (i.e. as you are supposed to), it does not work
with Safari & Konqueror. I have created a minimal page which accesses
the script:
http://pages.videotron.com/duffym/test.htm
For your info, here is the source of the page on the line above:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd";>
<html lang="en"><head>
<Meta Http-Equiv="Content-Type" Content="text/html; charset=UTF-
8">
<Meta Http-Equiv="Content-Language" Content="en-US">
<Meta Http-Equiv="Pragma" Content="no-cache">
<Meta Http-Equiv="Cache-Control" Content="no-cache">
<title>Test</title></head>
<body><p>
<img src=
"http://pages.videotron.com/cgi-bin/Count.cgi?
display=counter|df=vldowtzc.dat|incr=0|dd=B|md=7|ft=5|frgb=ffff00">
</p></body></html>
With IE, FF, Opera & Chrome, you correctly see "0000507" in a yellow
rectangle. With Safari & Konqueror, you see the same style as when
the url is given alone as a web address (green seven-segment on
black), but the numerical value is apparently a random number instead
of "888888".
Does anyone have any clues for me? According to the documentation for
the script, a random value is displayed whenever the "df" parameter
is not present or incorrect. In any case, the style that you see is
what you would expect if none of the parameters were passed.
Without knowing how the script processes those parameters it's hard to
tell. I did have a situation once where I was passing data from one page
to another and then reading the data using php. However, my script just
read the data in what I thought was the order in which it was being
passed and this caused it not to work in some browsers. What I hadn't
allowed for was that the data was passed in a different order depending
on the browser being used.
Obviously, if your script is 'GETTING' the data by variable name then
this shouldn't be a problem.
--
Pete Ives
Remove All_stRESS before sending me an email
.
- References:
- CGI script parameter error.
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- CGI script parameter error.
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