code: function strip_ignored_bytes(octets) {
          for (var o=octets.length-1; o>=0; o--) {
              switch (octets[o]) {
                  case XON:
                  case XON_HIGH:
                  case XOFF:
                  case XOFF_HIGH:
                      octets.splice(o, 1);
                      continue;
              }
          }
  
          return octets;
      }
docs: Remove octet values from the given array that ZMODEM always ignores.
  This will mutate the given array.
  
  @param {number[]} octets - The octet values to transform.
  Each array member should be an 8-bit unsigned integer (0-255).
  This object is mutated in the function.
  
  @returns {number[]} The passed-in array. This is the same object that is
  passed in.