# Browser Bias (150)
### This Chall it's simple. 
### I'm use burpsuite in all Challs, i recommend this for you.
### Intercept the page with Burp and send to Repeater, u get this. 
GET / HTTP/1.1Host: challenges.neverlanctf.com:1130User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8Accept-Language: es-AR,es;q=0.8,en-US;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateConnection: closeUpgrade-Insecure-Requests: 1
### Send and receive this.
HTTP/1.1 200 OKContent-Type: text/html; charset=UTF-8Date: Wed, 12 Feb 2020 16:35:00 GMTServer: nginxX-Powered-By: PHP/7.2.10Content-Length: 183Connection: Close
<html>    <head>        <title>Browser Bias</title>    </head>    <body>    Sorry, this site is only optimized for browsers that run on commodo 64</body></html>
### For solve this chall, u need add a User-Agent ("Contiki/1.0 (Commodore 64; http://dunkels.com/adam/contiki/)") like as 
GET / HTTP/1.1Host: challenges.neverlanctf.com:1130User-Agent: "Contiki/1.0 (Commodore 64; http://dunkels.com/adam/contiki/)" Firefox/73.0Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8Accept-Language: es-AR,es;q=0.8,en-US;q=0.5,en;q=0.3Accept-Encoding: gzip, deflateConnection: closeUpgrade-Insecure-Requests: 1
### And Get this 
HTTP/1.1 200 OKContent-Type: text/html; charset=UTF-8Date: Wed, 12 Feb 2020 16:49:25 GMTServer: nginxX-Powered-By: PHP/7.2.10Content-Length: 152Connection: Close
<html>    <head>        <title>Browser Bias</title>    </head>    <body>    Welcome fellow c64 user. flag{8b1t_w3b}</body></html>
### Chall Solved :)