Stop WebStorm from indenting non-Javascript script tags

Hi!

I'm playing with OMeta-JS and wants to have my OMeta script inside a script tag with type="text/x-ometajs".
But whenever I reindent my file WebStorm destroys the indentation I made by hand despite the contents are not Javascript/HTML/CSS.

Example, before file reformat:

    <script type="text/x-ometa-js" id="ometasrc">
        ometa M {
            number = digit+:x -> parseInt(x.join(""),10),

            exp = '(' exp:e ')' -> ["paren", e]
                | number:n      -> ["no paren", n]
        }

        M.matchAll("(123)", "exp")
    </script>

After reformat:

    <script type="text/x-ometa-js" id="ometasrc">
        ometa M {
        number = digit+:x -> parseInt(x.join(""),10),

        exp = '(' exp:e ')' -> ["paren", e]
        | number:n -> ["no paren", n]
        }

        M.matchAll("(123)", "exp")
    </script>