I don't see where you're closing your tags, so I don't know if that's part of your problem or not.   Even if it is not causing a problem, it's still bad style to not close tags.

Remove the whitespace after your $m->out lines and see if that fixes it, that is probably where they are coming from.  

If not, use a filter to remove the newlines:
<%filter>
s/\n//g;
</%filter>
  
Not that it should really matter, except for making your html a few bytes longer -- whitespace in HTML is not rendered by the browser.   If you want the whitespace to be rendered you need to use <p>, <br>, or set margins/padding with css.

MasterCZ wrote
Help me please.
Sory for my bad english.
I do not understand as to remove emty string (in the output);
For Examle this sample:
_____________________________________________________________________________
<%doc>=================================================
<%perl>
        $m->comp('.subcomponent', flavor=>'Hello');
        $m->comp('.subcomponent2', flavor=>'By');

<%init>
        $r->content_type(q{text/html; charset=utf-8});

<%doc>=================================================
<%def .subcomponent>
<%perl>
 $m->out('Testibg 1... '.$flavor);

<%args>
   $flavor=>undef;


<%doc>=================================================
<%def .subcomponent2>
<%perl>
 $m->out('Testing 2... '.$flavor);

<%args>
   $flavor=>undef;

_____________________________________________________________________________
It is returning next output:
_____________________________________________________________________________

Testibg 1... Hello



Testing 2... By



_____________________________________________________________________________







But, first string is empty. First string is returning of the main block.
First string 



is trash. How to make that a script did not output empty string.







P.S> For example it's destroys output file over browser.


  

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