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Avoiding stale config

Some servers aggressively cache config.json. To force a fresh fetch, add this <script> to the <head> of JBrowse's index.html:

<script>
  window.__jbrowseCacheBuster = true
</script>

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 <head> script can also move the config JBrowse loads by default, for a deployment whose config does not sit next to index.html:

<script>
  window.__jbrowseConfigPath = '/configs/production.json'
</script>

This changes the default only; a ?config= in the URL still takes precedence.

See also