<li>If <var>document</var> stops being <a data-cite=

"!HTML#fully-active">fully active</a> while the user interface is

being shown, or no longer is by the time this step is reached, then:

<ol>

<li>Close down the user interface.

</li>

<li>Set the <a>user agent</a>'s <a>payment request is showing</a>

boolean to false.

</li>

<li>Reject <var>promise</var> with an "<a>AbortError</a>"

<a>DOMException</a>.

</li>

</ol>

<li>Otherwise:

<ol>

<li>Close down any remaining user interface. The <a>user

agent</a> MAY use the value <var>result</var> to influence the

user experience.

</li>

<li>Set the <a>user agent</a>'s <a>payment request is showing</a>

boolean to false.

</li>

<li>Resolve <var>promise</var> with undefined.

</li>

</ol>