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Diffstat (limited to '')
| -rw-r--r-- | testing/web-platform/tests/webmessaging/multi-globals/messageport-incumbent.html | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webmessaging/multi-globals/messageport-incumbent.html b/testing/web-platform/tests/webmessaging/multi-globals/messageport-incumbent.html new file mode 100644 index 0000000000..4d47fb8124 --- /dev/null +++ b/testing/web-platform/tests/webmessaging/multi-globals/messageport-incumbent.html @@ -0,0 +1,35 @@ +<!DOCTYPE html> +<meta charset="utf-8"> +<title>Making the incumbent page become non-active must not prevent message transmission</title> +<script src="/resources/testharness.js"></script> +<script src="/resources/testharnessreport.js"></script> + +<!-- This is the entry global --> + +<iframe src="support/incumbent.html" id="incumbent"></iframe> +<iframe src="support/current.html" id="current"></iframe> + +<script> +"use strict"; +const incumbentIframe = document.querySelector("#incumbent"); +const currentIframe = document.querySelector("#current"); + +window.addEventListener("load", () => { + promise_test(async () => { + // This will invoke the constructor from currentIframe, but with incumbentIframe as the incumbent. + const messageChannel = incumbentIframe.contentWindow.createMessageChannel(); + + await new Promise((resolve, reject) => { + incumbentIframe.onload = () => resolve(); + incumbentIframe.onerror = () => reject(new Error("Could not navigate the iframe")); + incumbentIframe.src = "/common/blank.html"; + }); + + await new Promise((resolve, reject) => { + messageChannel.port1.onmessage = () => resolve(); + messageChannel.port1.onmessageerror = () => reject("messageerror event recieved"); + messageChannel.port2.postMessage("boo"); + }); + }); +}); +</script> |