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When you choose "Preview", which is actually a link,

<a class="preview button" href="?p=52&amp;preview=true"
id="post-preview" tabindex="4">Preview</a>

the post is saved and the preview opens in a new window.

I'm sure there is a javascript event attached to this button, I'd like to override it so that it saves and then preview link opens in the same tab / window.

Picture.png

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up vote 3 down vote accepted

Here's a way to do it without modifying the core:

add_action('admin_footer','preview_same_window');

function preview_same_window(){ ?>
    <script type="text/javascript">

    jQuery(function($){

     jQuery('.preview.button').unbind().removeAttr('target');

            setTimeout(function(){
                jQuery('.preview.button').unbind().removeAttr('target');
            },250);

    });

    </script>
    <?php
}
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