Prismic JS IE11 error

I'm using Prismic (GitHub - birkir/gatsby-source-prismic-graphql: Gatsby source plugin for Prismic GraphQL) and Gatsby. I got this error when run on IE11: Cursor and TypeError: Object doesn't support this action

Can someone look into this issue and fix it? My project supports IE11.

Thanks

Development of IE came to an end in 2015.

Just throwing that out there!

This is an open issue in the plugin: