servo/tests/wpt/web-platform-tests/interfaces/README.md

This directory contains Web IDL interface definitions for use in idlharness.js tests.

The .idl files are extracted from specs by Reffy into reffy-reports, and then copied into this directory.

Automatically importing changes from reffy-reports is tracked by the Auto-import IDL files project. Currently, it is only semi-automated, and not guaranteed to happen at any particular cadence. If you need to update an IDL file, please copy the file from whatwg/idl/ in reffy-reports.