The HyperText Transfer Protocol (HTTP)
416 Range Not Satisfiable error response code indicates that a server cannot serve the requested ranges. The most likely reason is that the document doesn't contain such ranges, or that the
Range header value, though syntactically correct, doesn't make sense.
416 response message contains a
Content-Range indicating an unsatisfied range (that is a
'*') followed by a
'/' and the current length of the resource. E.g.
Content-Range: bytes */12777
Faced with this error, browsers usually either abort the operation (for example, a download will be considered as non-resumable) or ask for the whole document again.
416 Range Not Satisfiable
|RFC 7233, section 4.4: 416 Request Not Satisfiable||Hypertext Transfer Protocol (HTTP/1.1): Range Requests|
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The information shown below has been pulled from MDN's GitHub (https://github.com/mdn/browser-compat-data).