Description
The servlet common instrumentation contains a class called ExperimentalSnippetHolder that references a config item of otel.experimental.javascript-snippet. This config and a couple of historical commits (#8734 and #8736) seem to indicate that this can be used to inject some text/html into the response coming out of servlets...but we have no documentation for it (or I cannot find it). I also couldn't find any tests that set this property, so it appears to perhaps be untested? Furthermore, I thought we generally avoided putting hyphens in configuration properties nowadays, because it breaks when using env vars (can't have hyphens).
So I think it would be good for us to write up something that describes what this property is and how it might be used.