Card Validator: Unable to render Card preview

website-card

#1

HI, I’m trying to validate my test URL https://akwaabafm.herokuapp.com/song-detail/524 before I migrate the site to production. I always get this message: Unable to render Card preview (Please find the screenshot attached)

Do you have any idea?


#2

Your site is not returning a Content-Type header so the validator cannot parse it as HTML.


#3

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