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How do I target IE9 and above with grunt autoprefixer? Can I do something like the following:

  grunt.config('autoprefixer', {
    options: {
      browsers: ['IE9+']
    },
    dist: {
      expand: true,
      src: '/styles/app.css'
    }
  });

How do I target IE9 and above with grunt autoprefixer? Can I do something like the following:

  grunt.config('autoprefixer', {
    options: {
      browsers: ['IE9+']
    },
    dist: {
      expand: true,
      src: '/styles/app.css'
    }
  });

• javascript
• css
• gruntjs
• autoprefixer

Share Improve this question Follow asked Jul 22, 2014 at 4:21 AndrewAndrew 5,71555 gold badges3737 silver badges4141 bronze badges

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1 Answer 1

Sorted by: Reset to default 7

The syntax for the browsers option can be found in the main Autoprefixer documentation. The relevant bits are:

• Firefox >= 20 is Firefox version 20 or newer.

And:

Browsers names (case insensitive):

• ...
• Explorer or ie for Internet Explorer.

Hence, in order to target IE9 and newer, use:

options: {
  browsers: ['ie >= 9']
},

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