Netlify Redirects Not Working for Forcing .html URLs

[nathanmartin]

@mahadi This is effectively the opposite of what people usually want, (usually they DO NOT want the .html extension to appear).

You cannot use _redirects to push from non-.html to .html, you must use Edge Functions.

See:

Disabled Pretty URLS but .html-less links continue to work and be indexed by search engines

You can use Edge Functions to handle this: but not with simple _redirects.