Get request with Array Query works in debugger but not in live

Hi,

Been trying to figure this out for a while now, I have a get request that has an input for an array in the debugger it's passed like this

{ 'color_in': ['Red','Green']}

And when I try to do the same in postman it doesn't work, and I tried all different alternatives but nothing it only works in postman if I try it with just one so like this https://apiendpoint/search2?color_in=Red

https://apiendpoint/search2?color_in=['Red','Green']

https://apiendpoint/search2?color_in=[Red,Green]

https://apiendpoint/search2?color_in=Red,Green

Any help is much appreciated