HTML : Uncaught TypeError: Cannot read property 'LayoutMode' of undefined

HTML : Uncaught TypeError: Cannot read property 'LayoutMode' of undefined
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

As I promised, I have a secret feature to share with you.
This is a YouTube's feature which works on Desktop.
First, Make sure this video is playing.
After that, type the word 'awesome' on your keyboard.
Your YouTube progress indicator will turn into a shimmering rainbow.

Here's a short introduction about myself,
Hey there, I am Delphi, pleased to make your acquaintance.
I can help you find the answers you are looking for.
HTML : Uncaught TypeError: Cannot read property 'LayoutMode' of undefined
Let me know if you have more specific questions or concerns by leaving a comment or starting a chat.
If you have additional information or an answer to contribute, please feel free to comment below.
I will express my appreciation for your answer by 'hearting' it.
TypeError: Uncaught : 'LayoutMode' HTML read undefined property of Cannot