How to recreate Facebook's console warning
When I was inspecting some code on Facebook. I came across this interesting feature. A simple styled console warning message from Facebook to its dear users(products).
Facebook's console warning message states like this;
This is a browser feature intended for developers. If someone told you to copy and paste something here to enable a Facebook feature or "hack" someone's account, it is a scam and will give them access to your Facebook account.
See https://www.facebook.com/selfxss for more information.
So in this tutorial below, I will help you or show you how to recreate the same console warning as Facebook on your website.
Now, what is %c?
The %c applies CSS style rules to the console log output string as specified by the second parameter as seen in the example below.
var stopCss = "color:red; font-size:65px; font-weight:bold; -webkit-text-stroke: 1px black"; var msgCss = "font-size:20px; background-color:teal;"; console.log('%cStop', stopCss); console.log('%cThis feature is intended for Developers only.', msgCss); console.log('%cSee https://ostoncodecypher.com/about for more info.', msgCss);
If I am to explain the example above;
%c is the specifier that’s within the first argument of the console.log() which picks up the very next argument as CSS style for the %c pattern argument text.
'Stop' + other texts in other console.log()s are the messages
Then finally stopCss and msgCss are the variables holding the CSS styles.
date_range Published :: 4 months ago At: 11:40 PM
event_note Detailed Date :: Feb 21st, 2021
person Writer :: Code
- RECENT POSTS
YOU MAY LIKE THESE POSTS