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

[ANSWER UPDATED on November 2017]

flex-grow only supports internet explorer 11+, no -ms- prefix. https://developer.mozilla.org/en-US/docs/Web/CSS/flex-grow

To find out what works for IE 10, use Autoprefixer

1 - Set filter to "ie 10"

2 - Type in CSS, for example:

.example {
  flex-grow: 3;
}

3 - Autoprefixer result:

.example {
  -ms-flex-positive: 3;
  flex-grow: 3;
}

Now you know what prefix to use for IE 10

Answer 2

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

For example,

-ms-flex-positive: 1;