I think the GP has an issue not with the specification part, but with the part where it's forbidden for clients to render a noncompliant page.
It's not forbidden. They just don't render certain noncompliant pages. Namely the ones with gross syntax errors.
Why are we okay with formats like PDF that have similarly catastrophic error handling?
It's not forbidden. They just don't render certain noncompliant pages. Namely the ones with gross syntax errors.
Why are we okay with formats like PDF that have similarly catastrophic error handling?