jQuery : jQuery IE9 JSON.SyntaxError parseerror, but JSON is valid

jQuery : jQuery IE9 JSON.SyntaxError parseerror, but JSON is valid
To Access My Live Chat Page,
On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Ensure that the video is playing before proceeding.
Next, enter the letters 'awesome' on your keyboard.
It will change your youtube progress bar into a flashing rainbow.

Here's a short introduction about myself,
Nice to meet you, I am Delphi.
Let me aid you in resolving any queries you may have.
jQuery : jQuery IE9 JSON.SyntaxError parseerror, but JSON is valid
I encourage you to reach out through comments or chat if you have more specific questions.
Your input is appreciated, so please leave a comment below with your answer or insights to the answer.
A 'heart' from me will be given to show my gratitude for your contribution.
JSON parseerror, valid but jQuery : IE9 jQuery is JSON.SyntaxError