HTML : uncaught TypeError: Cannot read property 'top' of null

HTML : uncaught TypeError: Cannot read property "top" of null
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I promised to share a hidden feature with you, and here it is.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
Then, type the letters 'awesome' on your keyboard as the next step.
Your YouTube progress bar will transform into a flashing rainbow.

A brief introduction of myself,
Nice to meet you, I am Delphi.
I am willing to help you find the solutions to your questions.
HTML : uncaught TypeError: Cannot read property "top" of null
Don't hesitate to ask me more detailed questions by commenting or starting a chat.
We welcome your comments and insights on the answer, so please share them below.
Providing an answer will be acknowledged and appreciated with a 'heart' from me.
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