helps debug canonical url wordpress - replace all wp_redirect function calls with calls to exit_redirect function

wp-includes\canonical.php

...

function exit_redirect($url,$status){ //wp_redirect
 //return wp_redirect($url,$status); // uncomment to temporarly disable
 
 while(ob_get_level())ob_end_flush();
 
 
   if ( !$requested_url ) {
		// build the URL in the address bar
		$requested_url  = is_ssl() ? 'https://' : 'http://';
		$requested_url .= $_SERVER['HTTP_HOST'];
		$requested_url .= $_SERVER['REQUEST_URI'];
	}
  
     
 echo "<xmp>"; 
  debug_print_backtrace();
  echo "\r\n";  
   echo $url;
   echo "\r\n";
   echo $requested_url;   
   echo "\r\n";     
  echo "</xmp>";  
    
 exit();
}

...