If you are including MOJ Frontend as part of your application's stylesheets then you'll need to do some additional work to support Internet Explorer 8 (IE8).
The first thing you need to do is follow GOV.UK Frontend's setup instructions for supporting Internet Explorer 8.
In Bundling an IE8-specific stylesheet you also need to add MOJ Frontend as shown below.
// application.scss
@import "govuk-frontend/frontend/all";
@import "@ministryofjustice/frontend/all";
.example {
// example application style
}
// application-ie8.scss
$govuk-is-ie8: true;
@import "application";
That's it.