Title: Pass Through Problem
Last modified: July 23, 2020

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# Pass Through Problem

 *  Resolved [dmpub](https://wordpress.org/support/users/dmpub/)
 * (@dmpub)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/pass-through-problem/)
 * Hi – love your plugin and the very high quality of its functionality. Thank you.
 * I’ve an issue – caused by my lack of comprehension, I’m sure. I have the following
   redirect set up
 * Source = /(.*) (implied using mydomain.com)
    Match = URL only When matched = 
   redirect to url with 302 code Target = [https://old.mydomain.com/$1](https://old.mydomain.com/$1)(
   ie now a different subdomain of mydomain.com)
 * It works as expected and perfectly. Thank you again.
 * BUT…..
 * What I really want to do is to change the “When matched” parameter to “Pass-through”.
   When I change that parameter (but nothing else), and then try visiting an original
   url, nothing happens. The browser just shows a blank screen but doesn’t load 
   the page.
 * Any thoughts on this?
 * Many tks
 * David.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Author [John Godley](https://wordpress.org/support/users/johnny5/)
 * (@johnny5)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/pass-through-problem/#post-13169013)
 * Why do you want to use a pass through? The target URL will need to exist.
 *  Thread Starter [dmpub](https://wordpress.org/support/users/dmpub/)
 * (@dmpub)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/pass-through-problem/#post-13169760)
 * Hi, John
 * Thank you for replying.
 * **Why I want to use a passthrough** : I have a website, thetravelinsider.info.
   I want to slowly convert it from the format and coding that was used to develop
   it, originally in the early 2000s, to a new response layout etc, which I’ll do
   in WordPress. But doing this represents a huge amount of effort and work, and
   so it is my plan to slowly work through pages, starting with the most popular
   ones. I’ll gradually switch from redirecting everything to redirecting, selectively,
   some directories but not others, and so on.
 * Accordingly, I have established a new WordPress site, thetravelinsider.info, 
   and renamed the original site to old.thetravelinsider.info. All requests to the
   site now get redirected to old.thetravelinsider.info with a 302 response.
 * But I’d like to preserve the main “thetravelinsider.info” identity rather than
   confuse people with old.thetravelinsider.info, and have links slowly start to
   appear to pages with the old subdomain in them. Hence the thought of passing 
   through.
 * **Target urls existing** : Not sure I understand your point here. All valid requests
   for existing thetravelinsider.info pages now exist on old.thetravelinsider.info
 * I hope this helps explain what I’m trying to do and the problem I’m encountering
   better.
 * Many thanks
 * David.
 *  Plugin Author [John Godley](https://wordpress.org/support/users/johnny5/)
 * (@johnny5)
 * [5 years, 10 months ago](https://wordpress.org/support/topic/pass-through-problem/#post-13176519)
 * A pass through isn’t really a redirect. It causes your server to make a secondary
   request to the target URL and return whatever content that request makes – the
   request is passed through to another page.
 * If your server returns an empty page then Redirection will return that empty 
   page. I can’t say why your server would return an empty page, but it’s something
   you’ll need to look into. You could, for example, check the access logs to see
   if the request is making it to the server.

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 3 replies
 * 2 participants
 * Last reply from: [John Godley](https://wordpress.org/support/users/johnny5/)
 * Last activity: [5 years, 10 months ago](https://wordpress.org/support/topic/pass-through-problem/#post-13176519)
 * Status: resolved