Function encodeSegment

src/background/sync/s3.js:34–38

(s)

// Per Sig V4: only unreserved chars (RFC 3986) are left unencoded in path segments.
function encodeSegment(s) {
  return encodeURIComponent(s).replace(/[!'()*]/g, (c) =>
    '%' + c.charCodeAt(0).toString(16).toUpperCase(),
  );
}

function toHex(buf) {
  return Array.from(buf).map(b => b.toString(16).padStart(2, '0')).join('');