Marketo webhooks
Hi,
I'm struggling with adding two fields then put this value into another field.
I use this article https://blog.teknkl.com/extremely-strange-webhooks-exploring-http-range/ to walk step by step to find the solution. I created a web-hook, import all files from this file rangehook_mathjson_files.zip into marketo.
But when I run this web-hook in response I got whole file instead a just piece of it set by "Range" value in request headers.
Please see this screenshot: https://www.dropbox.com/s/6zzos7j4pu9aeov/Screenshot%202021-07-02%20at%2015.04.19.png?dl=0 , it should look like this: 
Things that I mentioned above starts from here: https://blog.teknkl.com/extremely-strange-webhooks-exploring-http-range/#basicscorearithmeticwelladditionatleast