Error HTTP Request: Specified value 'X-Content-Type-Options'' Has invalid HTTP Header Characters''

Hello, i’m trying to use the activity ‘HTTP Request’ to get all opened tickets with a specific title, and the request should return me the numbers of each tickets, but its not working and returning me the error below:

HTTP Request: Specified value ‘X-Content-Type-Options’’ has invalid HTTP Header characters. (Parameter ‘name’)

I set up the output ‘headers’ with a variable string:

I believe you might have to double check your headers configuration via the Headers property.