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Support COOP same-origin-allow-popups #7408

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@vickiez vickiez commented Nov 7, 2024

Example of using BroadcastChannel to communicate between the same origin across browsing contexts, enabling popup auth flow when the app has a cross-origin opener policy of "same-origin-allow-popups"

*The final solution should ensure the correct InteractionType is used for redirects vs popups and should handle the case where popup window is closed by user

@@ -58,6 +58,7 @@ export type PopupParams = {
export class PopupClient extends StandardInteractionClient {
private currentWindow: Window | undefined;
protected nativeStorage: BrowserCacheManager;
private authChannel: BroadcastChannel;

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Seems like BroadcastChannel is well supported (https://caniuse.com/broadcastchannel) although not sure if this PopupClient.ts code needs to run in super old contexts. If so, they might want to check if BroadcastChannel doesn't exist and fallback to their URI change polling code. But if this is demo fix for them then probably none of that is necessary anyway

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lg!

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Reminder: This PR appears to be stale. If this PR is still a work in progress please mark as draft.

@microsoft-github-policy-service microsoft-github-policy-service bot added the Needs: Attention 👋 Awaiting response from the MSAL.js team label Nov 25, 2024
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