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An 'Access-Control-Allow-Orig<wbr />in' header has to be generated by the server. &nbsp;An easier method is to just copy the CSS files to your project.
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An 'Access-Control-Allow-Origin' header has to be generated by the server.  An easier method is to just copy the CSS files to your project.

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The client really wants us to pull from them so that if they make changes they don't have to remember to tell us to pull a new version. &nbsp; Do you have some guidance on how to do that with WP?
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The client really wants us to pull from them so that if they make changes they don't have to remember to tell us to pull a new version.   Do you have some guidance on how to do that with WP?

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We are building a new project for a client and they want us to use their WP template (the new project is not in WP). &nbsp; So we were just calling their CSS files and generating the templates that way. &nbsp; We are getting the errors:<br />
<br />

<pre><code id="code-10-28776939-1">XMLHttpRequest cannot load https://www.XXX.org/wp-content/plugins/ultimate-wp-query-search-filter/themes/default.css?ver=all. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://XXX.XXX.org' is therefore not allowed access.</code></pre>
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What sort of changes have to be made on the WP side to allow us to call those?
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We are building a new project for a client and they want us to use their WP template (the new project is not in WP).   So we were just calling their CSS files and generating the templates that way.   We are getting the errors:

(CODE)

What sort of changes have to be made on the WP side to allow us to call those?

Cross Domain CSS

WordPress is a free and open-source content management system (CMS) based on PHP and MySQL for creating websites and blogs. Features include a plugin architecture, a template system and strong management, customization and search systems; through its dynamic presentation of content, webmasters have the flexibility to create websites easily.

WordPress

Cascading Style Sheets (CSS) is a language used for describing the look and formatting of a document written in a markup language. Usually used to change web pages and user interfaces written in HTML, it can also be applied to any kind of XML document. CSS is designed primarily to distinguish the content of a document from its presentation.