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Test: Example 1: Table with header cells in the top row only (Narrator/Firefox)

Expectation: th element: MUST convey the position of the header (row/column)

Details
PropertyValue
Supportunknown
AT NameNarrator
AT Versionunknown
Browser NameFirefox
Browser Versionunknown
OS versionunknown
Dateunknown
Notes