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Merged
Chandan-walker merged 1 commit into from
Mar 11, 2026
Merged

Production pr #469

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24 changes: 12 additions & 12 deletions apps/proxy-auth/src/app/shadow-dom-overlay-container.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -4,14 +4,21 @@ import { OverlayContainer } from '@angular/cdk/overlay';
import { Platform } from '@angular/cdk/platform';

const CONTAINER_CLASS = 'cdk-overlay-container';
/** Full-viewport overlay container style so positioning is viewport-based when in shadow root */
/**
* Full-viewport overlay container style so positioning is viewport-based when in shadow root.
* z-index is set to 9999 — well above the content z-indices used inside the shadow root
* (send-otp .container = 1000, user-profile/user-management .container = 10). The container
* is also appended as the LAST child of the shadow root so that, even when a content element
* ends up with an equal z-index via the CSS cascade, DOM-order tie-breaking still favours the
* overlay.
*/
const OVERLAY_CONTAINER_STYLE =
'position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;pointer-events:none!important;z-index:1000!important;';
'position:fixed!important;top:0!important;left:0!important;right:0!important;bottom:0!important;pointer-events:none!important;z-index:9999!important;';
/**
* OverlayContainer that:
* - When proxy-auth with shadow root exists (script load): attaches the overlay as the
* **first** child of the shadow root with full-viewport fixed style, so it is NOT
* inside the fixed .container and positioning is correct (dropdown below the right field).
* **last** child of the shadow root with full-viewport fixed style and a high z-index,
* ensuring MatDialog / MatSnackBar / dropdowns always render above the component content.
* - Otherwise: attaches to document.body (default behaviour).
*/
@Injectable()
Expand Down Expand Up @@ -49,15 +56,8 @@ export class ShadowDomOverlayContainer extends OverlayContainer {
const parent = this._getOverlayParent();
if (parent !== this._document.body) {
container.setAttribute('style', OVERLAY_CONTAINER_STYLE);
const first = parent.firstChild;
if (first) {
parent.insertBefore(container, first);
} else {
parent.appendChild(container);
}
} else {
parent.appendChild(container);
}
parent.appendChild(container);
this._containerElement = container;
}

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