400 BAD request HTTP error code meaning? - Stack Overflow The challenge with 400 is that many load balancers use it for header-size issues before the request even reaches your app Following Erik's logic, keeping 400 for transport-level issues and using more granular codes for payload issues is the cleanest architectural approach
Axios Error: Request failed with status code 400 when sending a POST . . . HTTP status code 400 means 'Bad Request' – which indicates, your React app posts invalid data to your backend, like a missing field or a field which fails a specific validation if you're using Laravel (or any framework) for your backend, it schould report, what exactly is wrong with your request
What is causing size of a request header field exceeds limit 400 bad . . . The 400 errors occur on pages as well as image files The site I am running is based on WordPress I have tried deactivating all plugins and switching to a different theme, but I can see from the server logs that the errors continued during this period I managed to contact several users who have the problem