render-useragent verified
Browser required for preview
in the configuration this is a line
render-useragent: …Restricts the preview module to browsers sending a particular user-agent string, so casual viewing cannot pollute campaign statistics.
Values
- Values
any user-agent string- applying
restart required- where it can be set
in the config file · with a startup flag · as an environment variable
In detail
A narrower alternative to switching preview off entirely: the module only renders for a browser configured with the agreed string, which in practice means a dedicated browser profile used for this and nothing else. The console has a screen explaining the mismatch, showing both the expected string and the one the browser sent.