The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
Bad Request - Request Too Long
HTTP Error 400. The size of the request headers is too long. This happens a lot with Safari but I can go to another browser & the url works fine.
[Re-Titled by Moderator]
MacBook Air 15″, macOS 15.3
Clear your browsing history in Safari on Mac - Apple Support
Sometimes clearing just the past hour will suffice.
Clear your browsing history in Safari on Mac - Apple Support
Sometimes clearing just the past hour will suffice.
Yes, that seemed to do the trick. Thanks very much.
Safari shows 'HTTP Error 400' on MacBook
