[New Experiment-Consumption] : Dropbox Connection creation fails in logic app designer using testing gmail ID.

[vgouth]

Severity

P2 - High (Major functionality broken)

Describe the Bug with repro steps

1. Create a consumption logic app
2. Open designer
3. Use new experiment designer.
4. Add http request trigger
5. Add Dropbox- List files in folder action
6. Create a new connection to dropbox using testing gmail id

Expected: Creating a new connection to Dropbox with the testing Gmail ID should work smoothly without any problems.

Actual: Creating a new connection to Dropbox with the testing Gmail ID is not working. A pop-up appears but shows a browser closed error in the designer. Additionally, a pop-up appears stating "Microsoft Flow and PowerApps INT would like access to the files and folders in your Dropbox" instead of the expected "Microsoft Flow and PowerApps INT would like access to the files and folders in your Dropbox. Azure AppService Logic Apps would like access to the files and folders in your Dropbox."

What type of Logic App Is this happening in?

Consumption (Portal)

Are you experiencing a regression?

Version: 2.60223.1.3

Which operating system are you using?

Windows

Did you refer to the TSG before filing this issue? https://aka.ms/lauxtsg

Yes

Workflow JSON

Screenshots or Videos

dropbox connextion creation.zip

Environment

Edge
Issue repro in latest canary testing in Brazil south region.
Version: 2.0.20260320.3

Additional context

No response

[takyyon]

AI Triage Analysis

Component: Connections (OAuth) | Priority: P2 | SKU: Consumption (Portal)

Relevant Code

• libs/logic-apps-shared/src/designer-client-services/lib/consumption/connection.ts:289-304 — Consumption OAuth connection flow: fetches consent URL, opens popup, awaits login response
• libs/logic-apps-shared/src/designer-client-services/lib/base/oAuth.ts:7-46 — OAuthPopup class: opens window.open() popup, polls for auth code every 1s, 60s timeout
• libs/logic-apps-shared/src/designer-client-services/lib/oAuth.ts:33 — OAuthPopupOptions interface with consentUrl
• libs/logic-apps-shared/src/designer-client-services/lib/common/exceptions/connection.ts — Connection error handling

Probable Root Cause

The "browser closed error" in the designer likely comes from the OAuth popup flow at base/oAuth.ts:28-32. The OAuthPopup class polls the popup window every 1 second and resolves with an error if oAuthWindow?.closed is true before a code or error is received. This can happen if:

1. The Dropbox OAuth consent page redirects through multiple domains, causing a cross-origin check failure at line 20 (oAuthWindow.document.URL), which lands in the catch block (line 34) and silently continues — but the popup may then close itself after the redirect completes, triggering the "closed" path.
2. The consent URL returned by the server may be incorrect for the new experiment designer environment, or the redirect URI may not match the new experiment host.
3. The wrong consent prompt text ("Microsoft Flow and PowerApps INT" instead of including "Azure AppService Logic Apps") suggests the consent URL is pointing to an INT environment OAuth app that may not have proper redirect URIs configured.

Suggested Investigation

1. Capture the consentUrl value from the network tab when creating the Dropbox connection — verify the redirect URI matches the new experiment designer host
2. Check if the Dropbox connector OAuth app registration includes the new experiment designer origin in its allowed redirect URIs
3. Test the same flow in the classic (non-experiment) consumption designer to confirm it works there
4. The "INT" in the consent text confirms this is an integration/test environment issue — the OAuth app registration may need updating

Similar Issues

• None found with exact match for Dropbox + new experiment

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Automated analysis by issue triage agent. May contain inaccuracies — verify before acting.
Calibration: reviewed 4 past triage(s), 0 correction(s) applied.

[vgouth]

Issue not repro in latest stage test pass. We are able to create new connection now but with some other options. Logged a bug for it, as this bug is specifically logged for creation fails , closing this bug for now.
Version: 2.60331.1.1

#9014