JSFiddle - React, Tailwind, and code Playground

HTML

<script>
/** @license zlib.js 2012 - imaya [ https://github.com/imaya/zlib.js ] The MIT License */(function() {'use strict';function n(e){throw e;}var p=void 0,aa=this;function t(e,b){var d=e.split("."),c=aa;!(d[0]in c)&&c.execScript&&c.execScript("var "+d[0]);for(var a;d.length&&(a=d.shift());)!d.length&&b!==p?c[a]=b:c=c[a]?c[a]:c[a]={}};var x="undefined"!==typeof Uint8Array&&"undefined"!==typeof Uint16Array&&"undefined"!==typeof Uint32Array&&"undefined"!==typeof DataView;new (x?Uint8Array:Array)(256);var y;for(y=0;256>y;++y)for(var A=y,ba=7,A=A>>>1;A;A>>>=1)--ba;function B(e,b,d){var c,a="number"===typeof b?b:b=0,f="number"===typeof d?d:e.length;c=-1;for(a=f&7;a--;++b)c=c>>>8^C[(c^e[b])&255];for(a=f>>3;a--;b+=8)c=c>>>8^C[(c^e[b])&255],c=c>>>8^C[(c^e[b+1])&255],c=c>>>8^C[(c^e[b+2])&255],c=c>>>8^C[(c^e[b+3])&255],c=c>>>8^C[(c^e[b+4])&255],c=c>>>8^C[(c^e[b+5])&255],c=c>>>8^C[(c^e[b+6])&255],c=c>>>8^C[(c^e[b+7])&255];return(c^4294967295)>>>0}
var...

JavaScript

const parseString = str => {
		const strWithoutprefix = str.slice(2);
    const array = strWithoutprefix.match(/.{1,2}/g);
    return array.map(pair => parseInt(pair, 16));
}

const decompressed = gzipArray => {
		const gunzip = new Zlib.Gunzip(gzipArray);
    const plain = gunzip.decompress();
    return String.fromCharCode(...plain);
};

var str = "0x1F8B08000000000004002BC9C82C5600A2ACD2E212854485E2C4DC829C5485E292A2CCBC7400206D53921C000000";
alert(decompressed(parseString(str)));