Remove WP Canonical URL Admin Hack Wordpress Plugin - Rating, Reviews, Demo & Download
Plugin Description
When you upgrade to WordPress 4.2, canonical URLS are added to wp-admin area. There is then a JavaScript function that checks window.history.replaceState against the canonical URL and then does a location redirect.
This is usually fine. However if your blog is a multisite installation that is reverse proxied as a subsection of your site this may results in undesired behaviour for instance when trying to publish a post the page just redirects instead of updating.
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