proxy:busy
and proxy:idle
whenever it is loading or is done loading content over HTTP.up.proxy.defaults('busyDelay')
to delay the proxy:busy
event in order to prevent flickering of loading spinners.
If you're upgrading from an older Unpoly version you should load unpoly-migrate.js
to polyfill deprecated APIs.
Changes handled by unpoly-migrate.js
are not considered breaking changes.
See our upgrading guide for details.