• I’ve developed a shortcode that will log a user in (as “anonymous” subscriber) – it works great in most circumstances (all the time on my production server) – but on my sandbox server, it occasionally and seemingly randomly breaks with a “headers already sent” message, caused by a changing source.

    is there any way to assure that a shortcode runs earlier in the page load process?

    https://www.ads-software.com/plugins/shortcodes-ui/

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