thread Re: 400 Bad Request Request Header Or Cookie Too Large nginx in Payments Troubleshooting

400 Bad Request Request Header Or Cookie Too Large nginx

AloeVera1 — Sat, 20 Sep 2025 09:55:43 GMT

Why am I not able to connect to my website, I continually get this error?

400 Bad Request

Request Header Or Cookie Too Large

nginx

Re: 400 Bad Request Request Header Or Cookie Too Large nginx

BernadetteA — Sun, 22 Jan 2023 23:50:40 GMT

Welcome to the Seller Community, @AloeVera1

Sorry to hear you are having some troubles with your website! Have you tried clearing cache/cookies, or tried opening the site from a new browser in private/incognito mode?

Can you also please post a link to your site so we can take a look?

Thanks in advance! 😊

Re: 400 Bad Request Request Header Or Cookie Too Large nginx

salo — Thu, 26 Jan 2023 08:38:24 GMT

We ran into this bug a couple of times today as well. Clearing cache/cookies fixed it, but our customers should not be expected to do that.