iFrame cross domain support

[dgstpierre]

Wondering if I'm doing something wrong or iFrame allow support is not yet available. I'm not able to get javascript access to user agent hints (only works on localhost) within an iframe. Need some guidance on how to use allow in a cross-domain setting to be able to access navigator.userAgentData from a script executed from an iframe.

For example:
var iframe = doc.createElement("iframe");
iframe.sandbox = "allow-scripts";
iframe.allow = "ch-ua *; ch-ua-model *";

Is this approach correct? I'm able to access navigator.userAgentData from the page that creates the frame.

[arichiv]

It's working for me in jsfiddle (which I believe executes the code in a third-party iframe) https://jsfiddle.net/653kgemv/

Are you getting any console messages and/or are you able to see the results from other scripts you run? Is navigator.userAgentData just returning nothing?

[dgstpierre]

I left out a key point of information, I'm running in the context of a web worker. Is this supported?

[miketaylr]

https://wicg.github.io/ua-client-hints/#navigatoruadata should be exposed on workers, as well as window. If you're finding it's not, could you file a bug at crbug.com? Thanks.