<p class="help">Regexp with captures, must consume whole string like: <kbd>\Ahttps?://github.com/+([^/]+).*\z</kbd></p>
Unexpected token. Expected: `TOKEN_ERB_START, TOKEN_HTML_DOCTYPE, TOKEN_HTML_COMMENT_START, TOKEN_IDENTIFIER, TOKEN_WHITESPACE, TOKEN_NBSP, TOKEN_AT, or TOKE`, found: `TOKEN_BACKSLASH`.