ReSpec errors for navigate and origin references

[alancutter]

There are now 5 ReSpec errors: https://w3c.github.io/manifest/

The term "navigated" is ambiguous because it's defined in [html].
How to fix: To fix, use the [data-cite](https://respec.org/docs/#data-cite) attribute to pick the one you mean from the appropriate specification. [See search matches for "navigated"](https://respec.org/xref/?term=navigated&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)](https://respec.org/docs/#See search matches for "navigated"](https://respec.org/xref/?term=navigated&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)).

Occurred 3 times at:

[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-0) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-1) element
(plugin: "core/xref")

The term "same origin" is ambiguous because it's defined in [html].
How to fix: To fix, use the [data-cite](https://respec.org/docs/#data-cite) attribute to pick the one you mean from the appropriate specification. [See search matches for "same origin"](https://respec.org/xref/?term=same+origin&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)](https://respec.org/docs/#See search matches for "same origin"](https://respec.org/xref/?term=same+origin&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)).

Occurred 3 times at:

[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-2) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-3) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-4) element
(plugin: "core/xref")

The term "navigate" is ambiguous because it's defined in [html].
How to fix: To fix, use the [data-cite](https://respec.org/docs/#data-cite) attribute to pick the one you mean from the appropriate specification. [See search matches for "navigate"](https://respec.org/xref/?term=navigate&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)](https://respec.org/docs/#See search matches for "navigate"](https://respec.org/xref/?term=navigate&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)).

Occurred 5 times at:

[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-5) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-6) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-7) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-8) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-9) element
(plugin: "core/xref")

The term "navigated" is ambiguous because it's defined in [html].
How to fix: To fix, use the [data-cite](https://respec.org/docs/#data-cite) attribute to pick the one you mean from the appropriate specification. [See search matches for "navigated"](https://respec.org/xref/?term=navigated&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)](https://respec.org/docs/#See search matches for "navigated"](https://respec.org/xref/?term=navigated&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)).

Occurred 1 times at:

[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-10) element
(plugin: "core/xref")

The term "origin" is ambiguous because it's defined in [html].
How to fix: To fix, use the [data-cite](https://respec.org/docs/#data-cite) attribute to pick the one you mean from the appropriate specification. [See search matches for "origin"](https://respec.org/xref/?term=origin&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)](https://respec.org/docs/#See search matches for "origin"](https://respec.org/xref/?term=origin&types=_CONCEPT_&specs=html) or [Learn about this error](https://respec.org/docs/#error-term-not-found)).

Occurred 3 times at:

[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-11) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-12) element
[<a>](https://w3c.github.io/manifest/#respec-offender-definition-is-ambiguous-13) element

This is likely due to the recent change to the html spec: whatwg/html#6315

[marcoscaceres]

closing this one... there are currently 8 warnings, but will get to those separately.