COOKIES

To see cookies activities that happen on thw website. Inspect Element and go to the Application tab where the cookies tab will appear on the right.

I used a rudimentary method of manually going through each cookie value. By changing the cookie from -1 all the way to 18 where the value changes from a cookie name to the PicoCTF Flag

picoCTF{3v3ry1_l0v3s_c00k135_88acab36}