406 | Not Acceptable
The HTTP 406 code indicates that the browser being used is not fully compatible with the page's format; this can be caused by incorrectly written page markup (e.g. missing or incompatible doctype).
The HTTP 406 code indicates that the browser being used is not fully compatible with the page's format; this can be caused by incorrectly written page markup (e.g. missing or incompatible doctype).