Older React version documentation links are broken.

[kartiksharma1607]

Try going to React 15 documentation https://react-legacy.netlify.app/docs/hello-world.html

Go to search, search for Refs.

Page takes you to React 16 documentation instead.

[gaearon]

Yeah I think it's likely the search only works on the new website.

[alexkrolick]

It only works on the current version, I believe, even for old react 16 versions.

[rickhanlonii]

Closing as dupe of #3138

[gaearon]

Fixed in #3516