Html Form POST values extracted fine when at localhost:8080 but empty string when deployed at AppSpot

[Robin]

Fri 2016.12.09

This simple POST handler will extract form values when running at localhost:8080. [1]

However, when deployed to AppSpot, the values are an empty string. Changing the form action to 'GET'

works both at localhost:8080 and when deployed at AppSpot.

Tried r.PostFormValue("myValue")  and  r.FormValue("myValue") but both return ""

r.Method returns "POST" 

Even tried adding: enctype="multipart/form-data" to form element

Thank you for looking into this,  Robin

[1] https://siongui.github.io/2016/03/27/go-server-get-form-post-value/