Numeric character reference fallback for file upload characters not representable in form-charset
Change <input type="file"> filename encoding in multipart/form-data uploads in forms with non-Unicode accept-charset to use HTML numeric character references rather than '?' when a filename the user selects contains characters not representable in the target character encoding. This change would align our behavior with the existing behavior of Firefox and Edge. It is hoped that this behavior can eventually achieve cross-browser consensus and standardization.
Status in Chromium
Proposed (tracking bug)
Consensus & Standardization
Last updated on 2017-11-11