the original post doesn't link to the chat.
this link does: https://web.telegram.org/#/im?p=g33416306
First link in the OP is for mobile and tablet apps and the link above is for any web browser.
Error
One of the params is missing or invalid.
Method: messages.getFullChat
Result: {"_":"rpc_error","error_code":400,"error_message":"PEER_ID_INVALID"}
Stack: g/u@https://web.telegram.org/js/app.js:32:3911
g/_/<@https://web.telegram.org/js/app.js:32:5210
l@https://web.telegram.org/js/app.js:15:11957
c/<@https://web.telegram.org/js/app.js:15:12129
fn/this.$get</m.prototype.$eval@https://web.telegram.org/js/app.js:15:19531
fn/this.$get</m.prototype.$digest@https://web.telegram.org/js/app.js:15:17958
fn/this.$get</m.prototype.$evalAsync/<@https://web.telegram.org/js/app.js:15:19620
i@https://web.telegram.org/js/app.js:14:3037
it/u.defer/n<@https://web.telegram.org/js/app.js:14:4493
n@https://web.telegram.org/js/app.js:3:17076
My name is Akado, could someone invite me or something? I dunno why I'm getting that error regarding invalid ID, maybe I dont have permission to join?