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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
"use strict";
/**
* Loads an iframe.
*
* @return {Promise} promise that resolves when iframe is loaded.
*/
function createIframe(aSrcDoc) {
return new Promise(function (aResolve, aReject) {
let iframe = document.createElement("iframe");
iframe.onload = function () {
aResolve(iframe.contentDocument);
};
iframe.onerror = function () {
aReject("Failed to load iframe");
};
if (aSrcDoc) {
iframe.srcdoc = aSrcDoc;
}
document.body.appendChild(iframe);
});
}