chromium/third_party/blink/web_tests/external/wpt/eventsource/README.md

These are the Server-sent events (`EventSource`) tests for the
[Server-sent events chapter of the HTML Standard](https://html.spec.whatwg.org/multipage/comms.html#server-sent-events).

IDL tests are part of the `/html/dom/idlharness.*` resources.