[Bug 27122] New: MutationObserver.observe(node, {}) should throw

[email protected]
Newsgroups gmane.comp.web.dom.general
Message-ID <[email protected]/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27122

            Bug ID: 27122
           Summary: MutationObserver.observe(node, {}) should throw
           Product: WebAppsWG
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DOM
          Assignee: [email protected]
          Reporter: [email protected]
        QA Contact: [email protected]
                CC: [email protected], [email protected]

If nothing would be observed, observe() should just throw.
This was the behavior at some point, but the spec seems to have changed.

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