Have to agree with toolic (I did, initially, and then found my error, below) -- even with strict habitually added (and highly recommended).

However: if you're building a model for actual use with a server and browser, you're going to need to add two newlines to your Content-type... line, thusly

Content-type: text/html\n\n

or, two returns:

#!/usr/bin/perl
use strict;
use warnings;

#826261


print <<END_of_Multiline_Text;
Content-type: text/html


<HTML>
<HEAD>...

[download]

Update: But maybe he did what I did and inadvertently added a trailing newline after OP's code. Deleting it gives OP's error; hence, ++ almut

At least in my case, this argues for moving the trailing semi-colon from the line print <<END_of_Multiline_Text; to the line following the end of the heredoc, thus: 

#!/usr/bin/perl
use strict;
use warnings;

#826261
#  alt re content-type:  "Content-type: text/html (followed by two bla
+nk lines)
# if no newline after 19, perl reports "Can't find string terminator "
+END_of_Multiline_Text" anywhere before EOF at 826261.pl line 9."

print <<END_of_Multiline_Text
Content-type: text/html\n\n
<HTML>
<HEAD>
<TITLE>Hello World</TITLE>
</HEAD>
<BODY>
<H1>aaaaaaalo!</H1>
</BODY>
</HTML>
END_of_Multiline_Text
;

[download]

In reply to Re: dumb question on multiline text by ww
in thread dumb question on multiline text by VGR

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