Implement HTMLPortalElement/postMessage and PortalHost/postMessage |
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Issue descriptionThis allows portal host and guest contexts to communicate with one another. See: https://wicg.github.io/portals/#dom-htmlportalelement-postmessage https://wicg.github.io/portals/#dom-portalhost-postmessage
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Jan 15
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Comment 1 by jbroman@chromium.org
, Dec 11