HTTP status code 428 (Precondition Required) means: The server requires the request to be conditional, to prevent overwriting someone else's changes. Yes, a client error: the request was wrong or not allowed. Usually the link, the login or the data sent needs to change.
Is it an error?
Yes, a client error: the request was wrong or not allowed. Usually the link, the login or the data sent needs to change.
Common causes
- Conditional request headers do not match the current version
If you are visiting the site
- Reload the page
If you run the website
- Validate input and return a clear error message
Frequently asked questions
What does HTTP 428 mean?
HTTP status code 428 (Precondition Required) means: The server requires the request to be conditional, to prevent overwriting someone else's changes.
Is HTTP 428 an error?
Yes, a client error: the request was wrong or not allowed. Usually the link, the login or the data sent needs to change.
How do I fix a 428 error?
If you are visiting the site: Reload the page. If you run the website: Validate input and return a clear error message.