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A UK Visitor's Cookie Banner Was Cached, Then Served To Every Visitor For 24 Hours

Per-request CSRF nonce and detected region got baked into cached HTML. UK visitors saw US banners. The AJAX-init pattern that fixed it.

Written by

Jameson Brandon

@royalplugins · Tokyo, Japan

Wrote over 500k lines of code on just wp plugins

Writing on current projects we are working on

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