Is there a flex-grow for IE10?

Question

Caniuse states partial support with the -ms- prefix http://caniuse.com/#search=flex-grow as far as I can understand

Yet, when testing -ms-flex-grow has no effect in IE10, what am I missing here?

Answer 1

The IE10 equivalent of flex-grow is -ms-flex-positive

For example,

-ms-flex-positive: 1;