The documentation for the proxy configuration explains globs while regexps are used to match paths

[robertpanzer]

The documentation for the proxy configuration [1] explains that paths can be matched with glob expressions.
But looking at [2] it seems to me that the proxy uses regexps to match the path.
(Also in my project I got an error using ** and globs don't work)

[1] https://github.com/facebookincubator/create-react-app/blob/master/packages/react-scripts/template/README.md#configuring-the-proxy-manually
[2] https://github.com/facebookincubator/create-react-app/blob/c00358376b50e44313671384c64faf420e8d0c0a/packages/react-dev-utils/WebpackDevServerUtils.js#L367

Edit: Updated URL [2] to use a fix commit instead of referring to master which might end up in Nirvana