Returns an empty array when the browser version data is too short

[moxiaolongx0]

var Buffer = require('buffer').Buffer;
var LZ4 = require('lz4');
var input = Buffer.from("你好");
var output = Buffer.alloc( LZ4.encodeBound(input.length));
var compressedSize = LZ4.encodeBlock(input, output);
output = output.slice(0, compressedSize);
console.log(output);//length is 0

[moxiaolongx0]

At less than 86 characters