ESLint - no-unused-expressions warning for template tags

Created by: ffxsam

I'm using styled-components' injectGlobal template tag function, like so:

injectGlobal`
  .ant-btn-clicked:after {
    border: 0 solid ${mainTheme.primaryColor.toString()} !important;
  }

  .ant-switch-checked {
    background-color: ${mainTheme.primaryColor.toString()} !important;
    border-color: ${mainTheme.primaryColor.toString()} !important;
  }
`;

And I got warnings about injectGlobal being an unused expression. So I've modified my .eslintrc to be the following:

{
  "extends": "react-app",
  "rules": {
    "no-unused-expressions": ["error", {"allowTaggedTemplates": true}]
  }
}

This seems to stop ESLint warnings in Nuclide, but I'm still getting them in the browser console and shell:

./src/themes.js
  Line 20:  Expected an assignment or function call and instead saw an expression  no-unused-expressions

Am I configuring something wrong?