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Spec _unfencedTop navigation target #174

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Spec _unfencedTop navigation target #174

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18 changes: 18 additions & 0 deletions spec.bs
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Expand Up @@ -3454,6 +3454,24 @@ at the expense of some utility.
</wpt>
</div>

<h3 id=unfencedtop-monkeypatch>_unfencedTop</h3>

Fenced frames use an additional reserved navigation target `_unfencedTop` to navigate. This section patches the "Navigation and session history" spec to add `_unfencedTop`.

Extend [=valid navigable target name or keyword=] to include `_unfencedTop`.

In the following paragraph, "outermost top" is the top of nested navigables

In the table below, add a column for "Effect in a fenced frame"

The value for all other rows is the same as "ordinary effect".

Add rows for "_unfencedTop if outermost top is current" and "_unfencedTop if outermost top is not current", and make the rows like the top rows, but replacing top with outermost top.

Add an extra step to [=The rules for choosing a navigable=] between the current steps 6 and 7:

6.5. Otherwise, if name is an ASCII case-insensitive match for "_unfencedTop" and |currentNavigable| is in a fenced frame, set |chosen| to |currentNavigable|'s outermost navigable.

<h2 id=security-and-privacy>Security & Privacy Considerations</h2>

This material is being upstreamed from our explainer into this specification, and in the meantime
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