What does "escape" key in keyboard do?

Sometimes I mistakenly press one of the game buttons when there was a freeze in my both internet or computer. Then I realized that, page changes after then and I press ESC key as a reflex to cancel it.
Today I did this :
1. I login to lichess
2. Press a page button to "Start a game with computer"
3. then I start press ESC continously
4. then I realized that page did not load - blank page

I supposed that it is due to my internet's slowness, but no ! I opened new tab of lichess since previous one remains black(I did not refreshed by pressing F5) so I saw that, game starts already!
So can I suppose that ESC key is cancel out connection (i.e. data send or recieve)? Thanks.

No. The escape button is for escaping full screen. It does not disconnect your wifi.

The escape key does whatever the receiving program wants it to do. Not very helpful, but that's the only complete answer.
In my experience, most web browsers allow ESC to interrupt the rendering (drawing/redrawing) of a page. It sounds like that's what you did. You accepted a game, but then prevented your browser from drawing the game screen.
But there's no guarantee that every web browser will behave that way -- it's up to the implementer. And if you're using the app instead, I don't know what it does.

I pressed it once and I ended up in Morocco!

@MrPushwood said in #4:
> I pressed it once and I ended up in Morocco!
Elon Musk wants to know about the escape key that transported you to some place!

@MrPushwood said in #4:
> I pressed it once and I ended up in Morocco!

Dear MrPushWood, did you press the same ESC key in keyboard I mentioned, or ESC - Endedup in Some Country key ? :)

@mcgoves said in #3:
> The escape key does whatever the receiving program wants it to do. Not very helpful, but that's the only complete answer.
> In my experience, most web browsers allow ESC to interrupt the rendering (drawing/redrawing) of a page. It sounds like that's what you did. You accepted a game, but then prevented your browser from drawing the game screen.
> But there's no guarantee that every web browser will behave that way -- it's up to the implementer. And if you're using the app instead, I don't know what it does.

Nice answer. I tried it in worldsbiggestpacman.com/ web page and as you said, at the start it stops connection with page! Thanks.