Unicode icons turns into boxes for some fonts

[chiawendt]

When rendered font is Liberation Sans, the Unicode icons for closing a tab turns into boxes:

[acao]

Thanks for reporting! Important to note for impact for my fellow maintainers - Liberation Sans is the default sans on most Linux OSes outside of Ubuntu

[thomasheyenbrock]

This will be resolved with the upcoming design for GraphiQL v2 where we'll use SVG icons instead of unicode characters.

[thomasheyenbrock]

graphiql@2 has now been released and used SVG icons in most places instead of unicode characters. When using the CDN bundles it also ships with custom fonts and doesn't rely on any system fonts, so this issue should be fixed.