Problem
The backtick syntax for a string is a Template Literal, which allows for interpolation of variables within a string and multiline strings. They are not supported by Internet Explorer 11 (see more here: ECMAScript 6 compatibility table).
Solution
- You can use a transpiler, such as the ever-popular Babel. This will convert the template literal into the ECMAScript 5 syntax that Internet Explorer 11 understands.
- You could opt-out of supporting Internet Explorer 11, and stick with support for Edge and other browsers that have native ECMAScript 6 support, though this is usually not an option.