# Avoiding stale config Some servers aggressively cache `config.json`. To force a fresh fetch, add this ` ``` This appends a random query string to the config.json request, bypassing the browser cache. It is a single line, so a build script can inject it. ## Loading config.json from another path The same `` script can also move the config JBrowse loads by default, for a deployment whose config does not sit next to index.html: ```html ``` This changes the default only; a [`?config=`](https://jbrowse.org/jb2-staging/docs/urlparams#config) in the URL still takes precedence. ## See also - [](https://jbrowse.org/jb2-staging/docs/config_guides/deploying) - [](https://jbrowse.org/jb2-staging/docs/config_guides/intro)