Cookie-based Slack enumeration is likely broken

[cdanis]

Sometime in the past week, Slack seems to have drastically changed the formatting of the "login to other slacks" page that is displayed when you access a Slack you don't have access to (like slackpirate-donotuse.slack.com). Now, instead of the other Slacks being actual HTML entities, they seem to be created by Javascript.

I updated my re-implementation of this technique like so: cdanis/emojifs@95190f9

[emtunc]

Thank you @cdanis ! I've fixed in e93c58b

I give it a couple weeks before they change the page structure again :-D