Base64 Encode / Decode
URI Component: Use when putting Base64 in a URL. Encode wraps Base64 with encodeURIComponent (+ / = → %XX) for URLs; Decode does decodeURIComponent first, then Base64.
URI Component: Use when putting Base64 in a URL. Encode wraps Base64 with encodeURIComponent (+ / = → %XX) for URLs; Decode does decodeURIComponent first, then Base64.