---
type: work-item
project: fidelity
status: done
ticket: PDIAP-16167
title: AccountLink - XFlow causing web view rewrites investigation
systems: [xflowsdk, xflowviewmaker, fttransfer]
workstreams: [ao-discourse, consumer-integration]
people: [jeff-dewitte, zachary-boutyard]
related: [pdiap-15836]
tags:
  - work-item
  - fidelity
  - discourse
  - swiftui
updated: 2026-05-05
---

# PDIAP-16167 - AccountLink - XFlow causing web view rewrites investigation

## Status

- Done
- Confluence report published
- Findings/comment sent to Zachary and posted for Jira/Discourse follow-up

---

## Context

- Discourse 30181: FTTransfer (Zachary) reported that the AccountLink webview reloads / goes blank when the user taps the exit button in the FTTransfer playground.
- Zachary believes the issue is "new" and linked to a recent XFlow version change.

---

## Confirmed Findings

- **Root Cause:** SwiftUI Identity Reset (Modifier-Site Teardown). The `.ftFullScreenCover` modifier was anchored to a volatile branch inside `BankInformationView`. When the webview triggered an exit alert, the environment republish dismantled that volatile branch and rebuilt the presenter off-screen, causing the blank screen.
- **XFlow is NOT the cause:** XFlow eventing fires once to toggle a boolean and exits. The teardown happens later on a local JS/alert callback. XFlow does not mutate view identity, host lifecycle, or alert state.
- **v0.1.0 Rollback Proof:** The issue persists identically when rolling back XFlowSDK to v0.1.0 (pre-REST, pre-Apollo removal), empirically proving the defect is decoupled from the SDK's recent evolution.
- **Comparative Analysis:** The non-XFlow entry point (Zachary's alternative flow) survives because it uses a stable coordinator boundary (`BankSetupContainerView` / `NavigationStack`), bypassing the fragile modifier placement.

---

## Verified Resolution

- Moving the `.ftFullScreenCover` and the `shouldShowWebView` observer to the **stable root** of `BankInformationView` resolves the issue. Pure SwiftUI fix, no UIKit workarounds needed.
- Jeff acknowledged the fix and asked to include it in the Confluence report.

---

## Current Guidance

- Keep future references clear that this was documented as a consumer-side SwiftUI presentation-topology defect, not an XFlow/XFlowViewMaker regression.
- Include Jeff's preferred clarification that `XFlowSDK v0.1.0` predates the REST and Apollo-related changes that were newer additions.

---

## Closure Notes

- The published recommendation is to move the full-screen cover modifier to the stable root of `BankInformationView`, outside the conditional branch.
- David moved the story to Done on 2026-05-05.