Support » Plugin: Hummingbird – Speed up, Cache, Optimize Your CSS and JS » Compressing files cause error: Refused to apply style from

  • Resolved odedta


    Hello, when I compress some CSS files I get an error message in the console while loading the page:

    Refused to apply style from ‘https://MY_SITE/wp-content/uploads/hummingbird-assets/b82cf339664544c6c2dba3ccd68ff978.css’ because its MIME type (‘text/html’) is not a supported stylesheet MIME type, and strict MIME checking is enabled.

    Why is this happening?

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  • Plugin Support Dimitris – WPMU DEV Support


    Hello there @odedta

    Could you please open this file and check the handlers on top of it?
    They should tell you from which plugin or theme is coming from.
    Please do share this information with us so we can try to replicate in our lab sites. 🙂

    Thank you,

    Plugin Support Nastia – WPMU DEV Support


    Hello @odedta,

    I trust all is well!

    We’ve not heard from you in a while. I’ve marked this ticket as resolved for now, but if you need anything else at all, we’re here for you, please just reopen the ticket or create a new one.

    Have a great day!


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