cgi.pm and noscript

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: cgi.pm and noscript by moritz (Cardinal) on Sep 18, 2011 at 13:08 UTC
Just like any other tag, really: `use CGT qw/:all/; print header(); print noscript('Sorry, without javascript you are hosed!');` [download] Perl 6 - second systems done right	[reply] [d/l]
Re^2: cgi.pm and noscript by Anonymous Monk on Sep 18, 2011 at 13:18 UTC
OK thanks I was trying noScript (which is how its written in the docs)	[reply]
Re^3: cgi.pm and noscript by moritz (Cardinal) on Sep 18, 2011 at 13:27 UTC
The documentation just mentions `-noScript` as an option, and then talks about methods and subs for standard HTML tags in the section `CREATING STANDARD HTML ELEMENTS`, though it doesn't mention the noscript tag by name. Perl 6 - second systems done right	[reply] [d/l] [select]
Re: cgi.pm and noscript by Khen1950fx (Canon) on Sep 18, 2011 at 13:20 UTC
see: NOSCRIPT. You can put it in the HTML header, but not the HTTP header. Update: Here's an example: `#!/usr/bin/perl use strict; use warnings; print <<"End_Text"; <SCRIPT LANGUAGE=JAVASCRIPT> <!-- document.write('<img src="/cgi-bin/get-img.cgi?'+document.referrer+'"a +lt="logo" height=103 width=419>') // --> </SCRIPT> <NOSCRIPT> <img src="/cgi-bin/get-img.cgi?noscript" alt="logo" height=103 width=4 +19> </NOSCRIPT> End_Text` [download]	[reply] [d/l]
Re: cgi.pm and noscript by ww (Archbishop) on Sep 18, 2011 at 13:52 UTC
Perhaps you should be explicit about what you're trying to do. What scripting language are you trying to use to which you want the `noscript` to apply and how are you trying to call the script? My best guess, based on your second para, is that you have a script (js, VB, tcl or whatever) in the `head` section of a page generated by a perl script and that you're trying to execute the script or the content of the `noscript` element when the page is loaded. Update: Off on the wrong, Wrong, WRONG! track. The `noscript` tag is used to provide some sort of alternate info for browsers (intrinsicly or because of a user-selected option) which won't execute the script. But the `noscript` has to be in the body since it won't be executed if it's in the head section. TTBOMK (and recollection ... and sticking to js for this comment), in the case of an "onload" inside the `<body...> tag, HTML provides no way to apply a <c>noscript` alternate. OTOH, if you've inserted your script in-line, it appears that `noscript` should work if placed immediately after the script; substitute "might" for "should" if your script is in the head or an external file (and, in either case, remember that HTML doesn't allow `noscript` inside a `<p>...</p>` construct. IMO, §18 of the w3c guide on scripts doesn't provide a satisfactorily explicit answer to your question and the doc for CGI.pm that's distributed with 5.12 effectively tosses the question back to w3c... But this is based on way-too-much guesswork. Tell us more.	[reply] [d/l] [select]
Re^2: cgi.pm and noscript by Anonymous Monk on Sep 18, 2011 at 14:45 UTC
I was looking for an alternative to my current method which is `$cgi->start_html( ... -script => {-language => 'javascript', -src => '../javascript/sc +ript.js'}, -onLoad => 'init()', ),` [download] where script.js contains `function init() { document.getElementById('jsDisabled').style.display = 'none'; }` [download] which hides a message about javascript being disabled, but sometimes it briefly appears on the page, so I wondered if using the noscript tag would improve on that.	[reply] [d/l] [select]