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  1. #1
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    Specifying .pl script in cgi-bin in html page

    Can someone explain why this doesn't work:
    <form method="get" action="http://cgi-bin/johnlabwk6.pl">
    ( I get server not found error when I hit submit button in form)
    and this does work:
    <form method="get" action="http:/cgi-bin/johnlabwk6.pl">
    The above line was in some html provided by the author of a text book.

    I have Apache2.2 on Windows and I am just learning about cgi. I searched for answers and didn't find anything but it would seem the typical way to specify the URI path in this case would be:
    <form method="get" action="/cgi-bin/johnlabwk6.pl">
    The above also works fine and I think I will modify the example from the book for the students I am teaching distributed programming concepts to - not just CGI. BTW my html page is in the standard location for Apache - htdocs.

    John Bundy

  • #2
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    You're the instructor and don't understand URI's? I suspect that you're really one of the students.

    What text book are you using?

    Neither of the first two URI's should work, because they are missing the domain/authority.

    The third is a relative path on the local server, hence it does not require the scheme and authority.
    Last edited by FishMonger; 10-09-2011 at 05:21 PM.

  • #3
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    The book is "Distributed Computing by M.L. Liu" but the examples I started with from the course shell were not exactly like the book - and they do work. The examples in the book have multiple errors.

    I agree I would expect a host in the URI like http:/cgi-bin/johnlabwk6.pl but that really does work. http://cgi-bin/johnlabwk6.pl does not work with the normal two slashes after http and I would like to know why it works with one slash. I assumed there is something going on because of the Apache cgi environment and I read that cgi-bin is an alias.

    I see other places on the internet where forms have a URI like:
    <H4><FORM METHOD="POST" ACTION="http:/cgi-bin/test/store.pl?edit">
    at
    http://www.aprelium.com/forum/viewtopic.php?t=5434

    Please someone answer my original question.

  • #4
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    This is a case where the browser tries to interpret what you meant. Since the scheme is incomplete, the browser appears to ignore the http: portion and interpret the rest as the relative path as apposed to a fully qualified URI. This behavior should not be relied upon, since it's browser dependent and the next version of the same browser may not behave in the same manner.

  • Users who have thanked FishMonger for this post:

    johnbundy100 (10-11-2011)

  • #5
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    FishMonger - I conclude you are right. Thanks.


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