The <a>name</a> getter steps are to return <a>this</a>'s <a data-for=

"PerformanceServerTiming">metric name</a>.

<ol>

<li><p>If <a>this</a>'s <a data-for="PerformanceServerTiming">params</a>[<code>"dur"</code>] does not [=map/exists|exist=], return 0.</p></li>

<li><p>Let |dur| be the result of parsing <a>this</a>'s <a data-for="PerformanceServerTiming">params</a>[<code>"dur"</code>] using the [=rules for parsing floating-point number values=].</p></li>

<li><p>If |dur| is an error, return 0; Otherwise return |dur|.</p></li>

</ol>

<ol>

<li><p>Let |entries| be a new [=list=].</p></li>

<li>

<p>[=list/iterate|For each=] |rawMetric| in <a>this</a>'s <a data-cite="RESOURCE-TIMING#dfn-timing-info">timing info</a>'s [=fetch timing info/server timing headerss=]:</p>

<ol>

<li><p>Let |position| be a [=string/position variable=], initially pointing at the start of |rawMetric|.</p></li>

<li><p>Let |rawName| be the result of [=collecting a sequence of code points=]

that are not equal to U+003B (;), given <var>position</var>.

<li><p>Let |name| be the result of [=strip leading and trailing ASCII whitespace|stripping=] |rawName|.</p></li>

<li><p>If |name| is an empty string, [=iteration/continue=].</p></li>

<li><p>Let |metric| be a new {{PerformanceServerTiming}} whose <a data-for=

"PerformanceServerTiming">metric name</a> is |name|.</p></li>

<li><p>Let |params| be an empty <a data-cite="INFRA#map">map</a>.</p></li>

<li>

<p>While |position| is not at the end of |rawMetric|:</p>

<ol>

<li><p>Advance <var>position</var> by 1.</p></li>

<li><p>Let |rawParamName| be the result of [=collecting a sequence of code points=] from |rawMetric|

that are not equal to U+003D (=), given <var>position</var>.</p></li>

<li><p>Let |paramName| be the result of [=strip leading and trailing ASCII whitespace|stripping=] |rawParamName|.</p></li>

<li><p>If |paramName| is an empty string or |params|[|paramName|] [=map/exists=], [=iteration/continue=].</p></li>

<li><p>Advance <var>position</var> by 1.</p></li>

<li><p>Let |paramValue| be an empty string.</p></li>

<li><p>[=Skip ASCII whitespace=] within |rawMetric| given |position|.</p></li>

<li>

<p>If the [=code point=] at |position| within |rawMetric| is U+0022 ("), then:</p>

<ol>

<li><p>>Set |paramValue| to the result of [=collecting an HTTP quoted string=] from

|rawMetric| given <var>position</var> with the extract-value flag set.</p></li>

<li><p>[=Collect a sequence of code points=] that are not equal to U+003B (;),

given <var>position</var>. The result is not used.

</ol>

</li>

<li>

<p>Otherwise:</p>

<ol>

<li><p>Let |rawParamValue| be the result of [=collecting a sequence of code points=] from |rawMetric|

that are not equal to U+003B (;), given <var>position</var>.</p></li>

<li><p>Let |paramValue| be the result of [=strip leading and trailing ASCII whitespace|stripping=] |rawParamValue|.</p></li>

</ol>

</li>

</ol>

</li>

<li><p>[=map/set=] |metric|'s <a data-for="PerformanceServerTiming">params</a> to |params|</p></li>

<li><p>[=list/append|Append=] |metric| to |entries|.</p></li>

</ol>

</li>

<li><p>Return |list|.</p></li>

</ol>

## Process

### Processing Model

<p>When processing the response of the <a data-cite="NAVIGATION-TIMING#dfn-current-document">current document</a>, set the {{PerformanceResourceTiming/serverTiming}} attribute on the <a data-cite="NAVIGATION-TIMING#step-create-object">newly created</a> `PerformanceNavigationTiming` object to the return value of the [=server-timing header parsing algorithm=]

<p>For each resource [=fetch|fetched=] by the current [=browsing context=], excluding resources fetched by cross-origin stylesheets fetched with `no-cors` policy, set the {{PerformanceResourceTiming/serverTiming}} attribute on the <a data-cite="RESOURCE-TIMING#step-create-object">newly created</a> {{PerformanceResourceTiming}} object to:

<ol>

<li>An empty [=sequence=], if the return value from the "timing allow check" algorithm (as defined in [[RESOURCE-TIMING]]) is `fail`.</li>

<li>An empty [=sequence=], if the user agent chooses to limit their support to <span data-cite="html">[=secure contexts=]</span> and the <a data-cite="RESOURCE-TIMING#dfn-current-document">current document</a>'s [=environment settings object=] is <a data-cite="html" data-lt="non-secure contexts">not contextually secure</a>.</li>

<li>The return value of the [=server-timing header parsing algorithm=], otherwise.</li>

</ol>

#### <dfn>server-timing header parsing algorithm</dfn>

<p>Given a |resource timing object|, perform the following steps:</p>

<li>Let |entryList| be a new empty [=sequence=].

</li>

<li>For each server-specified metric received from parsing the [=Server-Timing header field=], perform the following steps:

<ol data-link-for="PerformanceServerTiming">

<li>Let |entry:PerformanceServerTiming| be a new {{PerformanceServerTiming}} object.</li>

<li>Set {{name}} to metric-name.</li>

<li>Set {{duration}} to the server-timing-param-value for the server-timing-param where server-timing-param-name is case-insensitively equal to "dur", or value 0 if omitted or not representable as a double.</li>

<li>Set {{description}} to the server-timing-param-value for the server-timing-param where server-timing-param-name is case-insensitively equal to "desc", or an empty string if omitted.</li>

<li>Append |entry| to |entryList|.

</li>

</ol>

</li>

<li>Return |entryList|</li>

<p>The user-agent MAY process [=Server-Timing header field=] communicated via a trailer field (see [[RFC7230]] section 4.1.2) using the same algorithm.</p>