Hi, I'm having to convert my dashboard in a hurry because I've moved to a new server and 'use lib' to locate external scripts for my html output, no longer works. Hence my quickly, to get to know modules. The module I have created, displays inconsistently. After I edit the output and clearing browser cache, it often shows old data from an earlier attempt, and rotates on 'refresh' between new an old content. I wonder if there is a caching aspect with modules (perhaps @EXPORT) that I am unaware of? So, would anyone please, be willing to troubleshoot and advise on this first attempt at a module. Main script 
   #!/usr/bin/perl -w

   use strict;
   use warnings;
   use CGI;
   use Data::Dumper;
   my $cgi = new CGI;
  
  
  
   # add the library dir to @INC;
   use lib do {
   use Cwd 'realpath';
   my ($dir) = __FILE__ =~ m{^(.*)/};  
    realpath("$dir/library"); 
   };


   use feature 'say';
   use FindBin '$RealBin';
   use lib $RealBin;
   use lib "$RealBin/library";


   print $cgi->header;


   use HtmlHeader;

   my %doctypeAndTitle = header();


   say $doctypeAndTitle{doctypeAndTitle}; #output inconsistent 


   1;

[download]
Here's the module 
   package HtmlHeader;

   use strict;
   use warnings;

   use parent 'Exporter';

   our @EXPORT_OK = qw[ header ];

   sub header {
   
      my $doctypeAndTitle = getDoctypeAndTitle();

      my %doctypeAndTitle = (
      doctypeAndTitle => $doctypeAndTitle ); 

   return %doctypeAndTitle;
   }




   sub getDoctypeAndTitle{

   my $doctype = "<!doctype html>
   <html>
    <head>
      <title>My Page Title</title>
    ";

 
   return $doctype;
   }
1;

[download]

In reply to Module inconsitency by keen2learn

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.