w3c
Disallow re-defining (via dfn) interface names when using partial interfaces
Important info
- URL to affected spec: https://w3c.github.io/mediacapture-main/
Description of problem
What happened (e.g., it crashed)?:
The mediacapture spec redefines "Navigator", which is a partial.
Expected behavior (e.g., it shouldn't crash):
We should ban (Error/refuse) the ability to redefine partial interfaces that are defined in other specs.
That may be a nice end goal, but that does not match practice for now. There are a number of interfaces that, for various reasons, are defined in one spec and extended in other specs. This can be seen in Webref extracts in the idlnames folder. For instance, look at // Source: lines in the extracts for the following interfaces:
WindowDocumentNavigatorElementGlobalEventHandlersCSSHTMLInputElementHTMLMediaElementPerformance- ...
There are a number of interfaces that, for various reasons, are defined in one spec and extended in other specs.
Extending (partial) in other specs is totally fine, but redefining <dfn>Window</dfn> should never be ok in another spec. At least, I can't think of any valid reason to do that.
Just to be clear, https://w3c.github.io/mediacapture-main/ ended up redefining Navigator (using <dfn> even though it's a partial), which broke things.
See https://github.com/w3c/mediacapture-main/pull/793