Re: [w3c/payment-handler] Add ImageObject dictionary. (#174)

ianbjacobs commented on this pull request.



> @@ -695,6 +695,21 @@
             When called, this method executes the following steps:
           </p>
           <ol>
+            <li>If the <a data-lt="PaymentInstrument.icons">icons</a> member of
+            <var>details</var> is present, then for each <var>icon</var> in
+            <var>details</var>.<a data-lt="PaymentInstrument.icons">icons</a>:
+              <ol>
+                <li>If <var>icon</var>.<a data-lt="ImageObject.type">type</a>
+                is not a <a data-cite="#valid-mime-type">valid MIME type</a> or
+                the value of type is not a supported media format, then return
+                a <a>Promise</a> rejected with a <a>TypeError</a>.
+                </li>
+                <li>If <var>icon</var>.<a data-lt="ImageObject.sizes">sizes</a>
+                is not a <a data-lt="ImageObject.sizes">valid value</a>, then
+                return a <a>Promise</a> rejected with a <a>TypeError</a>.
+                </li>
+              </ol>
+            </li>

@romandev, thank you for the examples. One question: given this specification's reliance on service workers, is that the only context that will be relevant here? And if so, should we say that clearly in the bullet that talks about the origin of the base URL?

Ian

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