pub fn configure(worker: ServiceWorker) -> Result<(), AlreadyConfigured>Expand description
Fix this process’s service-worker setting. Call it once, at start, before
the first page renders and before /sw.js is served.
One setting per process, because /sw.js is one URL per origin and every
page’s registration must agree with what that URL serves.
§Errors
AlreadyConfigured if it was set before, or if a render or /sw.js
already read the default; the setting in force stays.