Support » Plugin: SAML 2.0 Single Sign-On » Error setting cookies

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  • Plugin Author ktbartholomew

    (@ktbartholomew)

    “Headers already sent” is a common PHP error that is caused when you have output content (such as text or HTML) to the page, and then try to set headers after that. Headers like Set-Cookie, Location, Content-Type, etc. must ALL be sent before you start outputting the body of the response.

    I would check your various plugins and themes to be sure that none of them are sending output prematurely. Sometimes, this can even just be whitespace before your opening PHP tag!

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