diff --git a/js/examples/nextjs/app/ui.tsx b/js/examples/nextjs/app/ui.tsx
index 193da6fb..0d4b990d 100644
--- a/js/examples/nextjs/app/ui.tsx
+++ b/js/examples/nextjs/app/ui.tsx
@@ -21,9 +21,16 @@ const RP_ID = process.env.NEXT_PUBLIC_RP_ID;
 const STAGING_CONNECT_BASE_URL = "https://staging.world.org/verify";
 const CONNECT_URL_OVERRIDE_TOOLTIP =
   "Enable this to change the deeplink base URL to the staging verify endpoint. Useful when testing with a Staging iOS World App build that supports this override.";
+const RETURN_TO_TOOLTIP =
+  "Enable this to append a return_to callback to the connector URL. The default value just reopens Chrome, and you can override it before starting a verification.";
 
 type PresetKind = "orb" | "secure_document" | "document" | "device" | "selfie";
 
+function createChromeAppDeeplink(url: string): string {
+  const parsed = new URL(url);
+  return parsed.protocol === "https:" ? "googlechromes://" : "googlechrome://";
+}
+
 function createPreset(kind: PresetKind, signal: string) {
   switch (kind) {
     case "orb":
@@ -113,6 +120,9 @@ export function DemoClient(): ReactElement {
   const [useStagingConnectBaseUrl, setUseStagingConnectBaseUrl] =
     useState(false);
   const [isConnectUrlTooltipOpen, setIsConnectUrlTooltipOpen] = useState(false);
+  const [useReturnTo, setUseReturnTo] = useState(false);
+  const [returnTo, setReturnTo] = useState("");
+  const [isReturnToTooltipOpen, setIsReturnToTooltipOpen] = useState(false);
 
   const widgetPreset = useMemo(
     () => createPreset(widgetPresetKind, widgetSignal),
@@ -122,6 +132,9 @@ export function DemoClient(): ReactElement {
     environment === "staging" && useStagingConnectBaseUrl
       ? STAGING_CONNECT_BASE_URL
       : undefined;
+  const effectiveReturnTo = useReturnTo
+    ? returnTo.trim() || undefined
+    : undefined;
 
   useEffect(() => {
     document.documentElement.setAttribute(
@@ -137,6 +150,18 @@ export function DemoClient(): ReactElement {
     }
   }, [environment]);
 
+  useEffect(() => {
+    if (typeof window === "undefined") {
+      return;
+    }
+
+    setReturnTo((current) =>
+      current.length > 0
+        ? current
+        : createChromeAppDeeplink(window.location.href),
+    );
+  }, []);
+
   const startWidgetFlow = async (presetKind: PresetKind) => {
     setWidgetError(null);
     setWidgetVerifyResult(null);
@@ -256,6 +281,52 @@ export function DemoClient(): ReactElement {
             <span className="config-note">{STAGING_CONNECT_BASE_URL}</span>
           </div>
         )}
+        <div className="config-row">
+          <label htmlFor="cfgReturnToEnabled">Return to</label>
+          <div
+            className="tooltip"
+            onMouseEnter={() => setIsReturnToTooltipOpen(true)}
+            onMouseLeave={() => setIsReturnToTooltipOpen(false)}
+          >
+            <button
+              type="button"
+              className="tooltip-trigger"
+              aria-label="Explain return_to"
+              aria-describedby={
+                isReturnToTooltipOpen ? "return-to-tooltip" : undefined
+              }
+              aria-expanded={isReturnToTooltipOpen}
+              onFocus={() => setIsReturnToTooltipOpen(true)}
+              onBlur={() => setIsReturnToTooltipOpen(false)}
+              onClick={() => setIsReturnToTooltipOpen(true)}
+            >
+              ?
+            </button>
+            {isReturnToTooltipOpen && (
+              <span
+                id="return-to-tooltip"
+                role="tooltip"
+                className="tooltip-content"
+              >
+                {RETURN_TO_TOOLTIP}
+              </span>
+            )}
+          </div>
+          <input
+            type="checkbox"
+            id="cfgReturnToEnabled"
+            checked={useReturnTo}
+            onChange={(e) => setUseReturnTo(e.target.checked)}
+          />
+          <input
+            type="text"
+            id="cfgReturnTo"
+            value={returnTo}
+            onChange={(e) => setReturnTo(e.target.value)}
+            disabled={!useReturnTo}
+            placeholder="googlechromes://"
+          />
+        </div>
       </section>
 
       <div className="stack">
@@ -294,6 +365,7 @@ export function DemoClient(): ReactElement {
           }}
           environment={environment}
           override_connect_base_url={overrideConnectBaseUrl}
+          return_to={effectiveReturnTo}
         />
       )}
 
diff --git a/js/packages/core/README.md b/js/packages/core/README.md
index 0ae33040..ea320846 100644
--- a/js/packages/core/README.md
+++ b/js/packages/core/README.md
@@ -50,6 +50,7 @@ const request = await IDKit.request({
     signature: rpSig.sig,
   },
   allow_legacy_proofs: false,
+  return_to: "myapp://idkit/callback",
 }).preset(orbLegacy({ signal: "user-123" }));
 
 // Display QR code for World App
diff --git a/js/packages/core/src/request.ts b/js/packages/core/src/request.ts
index f132906d..928a42a7 100644
--- a/js/packages/core/src/request.ts
+++ b/js/packages/core/src/request.ts
@@ -371,6 +371,7 @@ function createWasmBuilderFromConfig(
       config.bridge_url ?? null,
       config.allow_legacy_proofs ?? false,
       config.override_connect_base_url ?? null,
+      config.return_to ?? null,
       config.environment ?? null,
     );
   }
@@ -383,6 +384,7 @@ function createWasmBuilderFromConfig(
       config.action_description ?? null,
       config.bridge_url ?? null,
       config.override_connect_base_url ?? null,
+      config.return_to ?? null,
       config.environment ?? null,
     );
   }
@@ -394,6 +396,7 @@ function createWasmBuilderFromConfig(
     config.action_description ?? null,
     config.bridge_url ?? null,
     config.override_connect_base_url ?? null,
+    config.return_to ?? null,
     config.environment ?? null,
   );
 }
@@ -602,6 +605,7 @@ function createRequest(config: IDKitRequestConfig): IDKitBuilder {
     rp_context: config.rp_context,
     action_description: config.action_description,
     bridge_url: config.bridge_url,
+    return_to: config.return_to,
     allow_legacy_proofs: config.allow_legacy_proofs,
     override_connect_base_url: config.override_connect_base_url,
     environment: config.environment,
@@ -651,6 +655,7 @@ function createSession(config: IDKitSessionConfig): IDKitBuilder {
     rp_context: config.rp_context,
     action_description: config.action_description,
     bridge_url: config.bridge_url,
+    return_to: config.return_to,
     override_connect_base_url: config.override_connect_base_url,
     environment: config.environment,
   });
@@ -705,6 +710,7 @@ function proveSession(
     rp_context: config.rp_context,
     action_description: config.action_description,
     bridge_url: config.bridge_url,
+    return_to: config.return_to,
     override_connect_base_url: config.override_connect_base_url,
     environment: config.environment,
   });
diff --git a/js/packages/core/src/transports/native.ts b/js/packages/core/src/transports/native.ts
index 7f730cc5..0877a57d 100644
--- a/js/packages/core/src/transports/native.ts
+++ b/js/packages/core/src/transports/native.ts
@@ -73,6 +73,7 @@ export interface BuilderConfig {
   rp_context?: import("../types/config").RpContext;
   action_description?: string;
   bridge_url?: string;
+  return_to?: string;
   allow_legacy_proofs?: boolean;
   override_connect_base_url?: string;
   environment?: string;
diff --git a/js/packages/core/src/types/config.ts b/js/packages/core/src/types/config.ts
index 7429a2bd..0fa77403 100644
--- a/js/packages/core/src/types/config.ts
+++ b/js/packages/core/src/types/config.ts
@@ -46,6 +46,8 @@ export type IDKitRequestConfig = {
   action_description?: string;
   /** URL to a third-party bridge to use when connecting to the World App. Optional. */
   bridge_url?: string;
+  /** Optional deep-link callback URL appended as `return_to` on the connector URL. */
+  return_to?: string;
 
   /**
    * Whether to accept legacy (v3) World ID proofs as fallback.
@@ -80,6 +82,8 @@ export type IDKitSessionConfig = {
   action_description?: string;
   /** URL to a third-party bridge to use when connecting to the World App. Optional. */
   bridge_url?: string;
+  /** Optional deep-link callback URL appended as `return_to` on the connector URL. */
+  return_to?: string;
   /** Optional override for the connect base URL (e.g., for staging environments) */
   override_connect_base_url?: string;
 
diff --git a/js/packages/react/README.md b/js/packages/react/README.md
index 75ab6198..77c0c87a 100644
--- a/js/packages/react/README.md
+++ b/js/packages/react/README.md
@@ -31,6 +31,7 @@ function Example() {
     action: "my-action",
     rp_context,
     allow_legacy_proofs: false,
+    return_to: "myapp://idkit/callback",
     preset: orbLegacy({ signal: "user-123" }),
   });
   const isBusy =
@@ -72,6 +73,7 @@ function WidgetExample() {
       action="my-action"
       rp_context={rpContext}
       allow_legacy_proofs={false}
+      return_to="myapp://idkit/callback"
       preset={orbLegacy({ signal: "user-123" })}
       onSuccess={(result) => {
         // required: runs after verification succeeds
diff --git a/js/packages/react/src/__tests__/hooks.test.tsx b/js/packages/react/src/__tests__/hooks.test.tsx
index 64f9aa55..faeaff69 100644
--- a/js/packages/react/src/__tests__/hooks.test.tsx
+++ b/js/packages/react/src/__tests__/hooks.test.tsx
@@ -119,6 +119,17 @@ describe("request/session hooks", () => {
     });
 
     expect(requestMock).toHaveBeenCalledTimes(1);
+    expect(requestMock).toHaveBeenCalledWith({
+      app_id: "app_test",
+      action: "test-action",
+      rp_context: baseRpContext,
+      action_description: undefined,
+      bridge_url: undefined,
+      return_to: undefined,
+      allow_legacy_proofs: false,
+      override_connect_base_url: undefined,
+      environment: undefined,
+    });
     expect(result.current.connectorURI).toBe("wc://request");
     expect(result.current.result).toEqual({ proof: "ok" });
   });
@@ -151,6 +162,15 @@ describe("request/session hooks", () => {
     });
 
     expect(createSessionMock).toHaveBeenCalledTimes(1);
+    expect(createSessionMock).toHaveBeenCalledWith({
+      app_id: "app_test",
+      rp_context: baseRpContext,
+      action_description: undefined,
+      bridge_url: undefined,
+      override_connect_base_url: undefined,
+      return_to: undefined,
+      environment: undefined,
+    });
     expect(proveSessionMock).not.toHaveBeenCalled();
     expect(result.current.result?.session_id).toBe("session_1");
   });
@@ -189,11 +209,133 @@ describe("request/session hooks", () => {
       action_description: undefined,
       bridge_url: undefined,
       override_connect_base_url: undefined,
+      return_to: undefined,
       environment: undefined,
     });
     expect(result.current.result?.session_id).toBe("session_2");
   });
 
+  it("request hook forwards return_to to core", async () => {
+    requestMock.mockReturnValue({
+      preset: vi.fn(async () =>
+        makeRequest(async () => ({
+          type: "confirmed",
+          result: { proof: "ok" },
+        })),
+      ),
+    });
+
+    const { result } = renderHook(() =>
+      useIDKitRequest({
+        app_id: "app_test",
+        action: "test-action",
+        rp_context: baseRpContext,
+        allow_legacy_proofs: false,
+        return_to: "idkit://callback?step=proof",
+        preset: { type: "OrbLegacy" },
+      }),
+    );
+
+    act(() => {
+      result.current.open();
+    });
+
+    await waitFor(() => {
+      expect(result.current.isSuccess).toBe(true);
+    });
+
+    expect(requestMock).toHaveBeenCalledWith({
+      app_id: "app_test",
+      action: "test-action",
+      rp_context: baseRpContext,
+      action_description: undefined,
+      bridge_url: undefined,
+      return_to: "idkit://callback?step=proof",
+      allow_legacy_proofs: false,
+      override_connect_base_url: undefined,
+      environment: undefined,
+    });
+  });
+
+  it("session hook forwards return_to to createSession", async () => {
+    createSessionMock.mockReturnValue({
+      preset: vi.fn(async () => ({
+        connectorURI: "wc://session-create",
+        pollOnce: vi.fn(async () => ({
+          type: "confirmed",
+          result: { session_id: "session_1", responses: [] },
+        })),
+      })),
+    });
+
+    const { result } = renderHook(() =>
+      useIDKitSession({
+        app_id: "app_test",
+        rp_context: baseRpContext,
+        return_to: "idkit://callback?step=create",
+        preset: { type: "OrbLegacy" },
+      }),
+    );
+
+    act(() => {
+      result.current.open();
+    });
+
+    await waitFor(() => {
+      expect(result.current.isSuccess).toBe(true);
+    });
+
+    expect(createSessionMock).toHaveBeenCalledWith({
+      app_id: "app_test",
+      rp_context: baseRpContext,
+      action_description: undefined,
+      bridge_url: undefined,
+      override_connect_base_url: undefined,
+      return_to: "idkit://callback?step=create",
+      environment: undefined,
+    });
+  });
+
+  it("session hook forwards return_to to proveSession", async () => {
+    proveSessionMock.mockReturnValue({
+      preset: vi.fn(async () => ({
+        connectorURI: "wc://session-prove",
+        pollOnce: vi.fn(async () => ({
+          type: "confirmed",
+          result: { session_id: "session_2", responses: [] },
+        })),
+      })),
+    });
+
+    const { result } = renderHook(() =>
+      useIDKitSession({
+        app_id: "app_test",
+        rp_context: baseRpContext,
+        existing_session_id: "session_2",
+        return_to: "idkit://callback?step=prove",
+        preset: { type: "OrbLegacy" },
+      }),
+    );
+
+    act(() => {
+      result.current.open();
+    });
+
+    await waitFor(() => {
+      expect(result.current.isSuccess).toBe(true);
+    });
+
+    expect(proveSessionMock).toHaveBeenCalledWith("session_2", {
+      app_id: "app_test",
+      rp_context: baseRpContext,
+      action_description: undefined,
+      bridge_url: undefined,
+      override_connect_base_url: undefined,
+      return_to: "idkit://callback?step=prove",
+      environment: undefined,
+    });
+  });
+
   it("session hook fails on empty existing_session_id", async () => {
     const { result } = renderHook(() =>
       useIDKitSession({
diff --git a/js/packages/react/src/hooks/useIDKitRequest.ts b/js/packages/react/src/hooks/useIDKitRequest.ts
index bfe7aaeb..3ec7c3eb 100644
--- a/js/packages/react/src/hooks/useIDKitRequest.ts
+++ b/js/packages/react/src/hooks/useIDKitRequest.ts
@@ -16,6 +16,7 @@ export function useIDKitRequest(
         rp_context: config.rp_context,
         action_description: config.action_description,
         bridge_url: config.bridge_url,
+        return_to: config.return_to,
         allow_legacy_proofs: config.allow_legacy_proofs,
         override_connect_base_url: config.override_connect_base_url,
         environment: config.environment,
diff --git a/js/packages/react/src/hooks/useIDKitSession.ts b/js/packages/react/src/hooks/useIDKitSession.ts
index 0fb11e26..3475e816 100644
--- a/js/packages/react/src/hooks/useIDKitSession.ts
+++ b/js/packages/react/src/hooks/useIDKitSession.ts
@@ -33,6 +33,7 @@ export function useIDKitSession(
           action_description: config.action_description,
           bridge_url: config.bridge_url,
           override_connect_base_url: config.override_connect_base_url,
+          return_to: config.return_to,
           environment: config.environment,
         })
       : IDKit.createSession({
@@ -41,6 +42,7 @@ export function useIDKitSession(
           action_description: config.action_description,
           bridge_url: config.bridge_url,
           override_connect_base_url: config.override_connect_base_url,
+          return_to: config.return_to,
           environment: config.environment,
         });
     return builder.preset(config.preset);
diff --git a/rust/core/src/wasm_bindings.rs b/rust/core/src/wasm_bindings.rs
index 76d425ad..5f774d10 100644
--- a/rust/core/src/wasm_bindings.rs
+++ b/rust/core/src/wasm_bindings.rs
@@ -472,6 +472,7 @@ enum IDKitConfigWasm {
         bridge_url: Option<String>,
         allow_legacy_proofs: bool,
         override_connect_base_url: Option<String>,
+        return_to: Option<String>,
         environment: Option<String>,
     },
     CreateSession {
@@ -480,6 +481,7 @@ enum IDKitConfigWasm {
         action_description: Option<String>,
         bridge_url: Option<String>,
         override_connect_base_url: Option<String>,
+        return_to: Option<String>,
         environment: Option<String>,
     },
     ProveSession {
@@ -489,6 +491,7 @@ enum IDKitConfigWasm {
         action_description: Option<String>,
         bridge_url: Option<String>,
         override_connect_base_url: Option<String>,
+        return_to: Option<String>,
         environment: Option<String>,
     },
 }
@@ -508,6 +511,7 @@ impl IDKitConfigWasm {
                 bridge_url,
                 allow_legacy_proofs,
                 override_connect_base_url,
+                return_to,
                 environment,
             } => {
                 let app_id = crate::AppId::new(app_id)
@@ -532,7 +536,7 @@ impl IDKitConfigWasm {
                     allow_legacy_proofs: *allow_legacy_proofs,
 
                     override_connect_base_url: override_connect_base_url.clone(),
-                    return_to: None,
+                    return_to: return_to.clone(),
                     environment: environment.as_deref().map(|e| match e {
                         "staging" => crate::bridge::Environment::Staging,
                         _ => crate::bridge::Environment::Production,
@@ -545,6 +549,7 @@ impl IDKitConfigWasm {
                 action_description,
                 bridge_url,
                 override_connect_base_url,
+                return_to,
                 environment,
             } => {
                 let app_id = crate::AppId::new(app_id)
@@ -567,7 +572,7 @@ impl IDKitConfigWasm {
                     allow_legacy_proofs: false,
 
                     override_connect_base_url: override_connect_base_url.clone(),
-                    return_to: None,
+                    return_to: return_to.clone(),
                     environment: environment.as_deref().map(|e| match e {
                         "staging" => crate::bridge::Environment::Staging,
                         _ => crate::bridge::Environment::Production,
@@ -581,6 +586,7 @@ impl IDKitConfigWasm {
                 action_description,
                 bridge_url,
                 override_connect_base_url,
+                return_to,
                 environment,
             } => {
                 let app_id = crate::AppId::new(app_id)
@@ -605,7 +611,7 @@ impl IDKitConfigWasm {
                     allow_legacy_proofs: false,
 
                     override_connect_base_url: override_connect_base_url.clone(),
-                    return_to: None,
+                    return_to: return_to.clone(),
                     environment: environment.as_deref().map(|e| match e {
                         "staging" => crate::bridge::Environment::Staging,
                         _ => crate::bridge::Environment::Production,
@@ -647,6 +653,7 @@ impl IDKitBuilderWasm {
         bridge_url: Option<String>,
         allow_legacy_proofs: bool,
         override_connect_base_url: Option<String>,
+        return_to: Option<String>,
         environment: Option<String>,
     ) -> Self {
         Self {
@@ -658,6 +665,7 @@ impl IDKitBuilderWasm {
                 bridge_url,
                 allow_legacy_proofs,
                 override_connect_base_url,
+                return_to,
                 environment,
             },
         }
@@ -672,6 +680,7 @@ impl IDKitBuilderWasm {
         action_description: Option<String>,
         bridge_url: Option<String>,
         override_connect_base_url: Option<String>,
+        return_to: Option<String>,
         environment: Option<String>,
     ) -> Self {
         Self {
@@ -681,6 +690,7 @@ impl IDKitBuilderWasm {
                 action_description,
                 bridge_url,
                 override_connect_base_url,
+                return_to,
                 environment,
             },
         }
@@ -696,6 +706,7 @@ impl IDKitBuilderWasm {
         action_description: Option<String>,
         bridge_url: Option<String>,
         override_connect_base_url: Option<String>,
+        return_to: Option<String>,
         environment: Option<String>,
     ) -> Self {
         Self {
@@ -706,6 +717,7 @@ impl IDKitBuilderWasm {
                 action_description,
                 bridge_url,
                 override_connect_base_url,
+                return_to,
                 environment,
             },
         }
@@ -917,6 +929,7 @@ pub fn request(
     bridge_url: Option<String>,
     allow_legacy_proofs: bool,
     override_connect_base_url: Option<String>,
+    return_to: Option<String>,
     environment: Option<String>,
 ) -> IDKitBuilderWasm {
     IDKitBuilderWasm::new(
@@ -927,6 +940,7 @@ pub fn request(
         bridge_url,
         allow_legacy_proofs,
         override_connect_base_url,
+        return_to,
         environment,
     )
 }
@@ -940,6 +954,7 @@ pub fn create_session(
     action_description: Option<String>,
     bridge_url: Option<String>,
     override_connect_base_url: Option<String>,
+    return_to: Option<String>,
     environment: Option<String>,
 ) -> IDKitBuilderWasm {
     IDKitBuilderWasm::for_create_session(
@@ -948,6 +963,7 @@ pub fn create_session(
         action_description,
         bridge_url,
         override_connect_base_url,
+        return_to,
         environment,
     )
 }
@@ -955,6 +971,7 @@ pub fn create_session(
 /// Entry point for proving an existing session (WASM)
 #[must_use]
 #[wasm_bindgen(js_name = proveSession)]
+#[allow(clippy::too_many_arguments)]
 pub fn prove_session(
     session_id: String,
     app_id: String,
@@ -962,6 +979,7 @@ pub fn prove_session(
     action_description: Option<String>,
     bridge_url: Option<String>,
     override_connect_base_url: Option<String>,
+    return_to: Option<String>,
     environment: Option<String>,
 ) -> IDKitBuilderWasm {
     IDKitBuilderWasm::for_prove_session(
@@ -971,6 +989,7 @@ pub fn prove_session(
         action_description,
         bridge_url,
         override_connect_base_url,
+        return_to,
         environment,
     )
 }
@@ -1216,6 +1235,8 @@ export interface IDKitSessionConfig {
     action_description?: string;
     /** Optional bridge URL (defaults to production) */
     bridge_url?: string;
+    /** Optional deep-link callback URL appended as `return_to` on the connector URL */
+    return_to?: string;
 }
 
 /** RpContext for proof requests */
@@ -1347,6 +1368,7 @@ export function createSession(
     action_description?: string,
     bridge_url?: string,
     override_connect_base_url?: string,
+    return_to?: string,
     environment?: string
 ): IDKitBuilder;
 
@@ -1362,6 +1384,86 @@ export function proveSession(
     action_description?: string,
     bridge_url?: string,
     override_connect_base_url?: string,
+    return_to?: string,
     environment?: string
 ): IDKitBuilder;
 "#;
+
+#[cfg(test)]
+mod tests {
+    use super::IDKitConfigWasm;
+    use crate::{ConstraintNode, RpContext};
+
+    fn sample_rp_context() -> RpContext {
+        RpContext::new("rp_123456789abcdef0", "0x01", 1, 2, "0x1234").expect("valid rp_context")
+    }
+
+    #[test]
+    fn request_params_preserve_return_to() {
+        let config = IDKitConfigWasm::Request {
+            app_id: "app_staging_test".to_string(),
+            action: "test-action".to_string(),
+            rp_context: sample_rp_context(),
+            action_description: None,
+            bridge_url: None,
+            allow_legacy_proofs: false,
+            override_connect_base_url: None,
+            return_to: Some("idkit://callback?step=request".to_string()),
+            environment: None,
+        };
+
+        let params = config
+            .to_params(ConstraintNode::Any { any: Vec::new() })
+            .expect("request params");
+
+        assert_eq!(
+            params.return_to.as_deref(),
+            Some("idkit://callback?step=request")
+        );
+    }
+
+    #[test]
+    fn create_session_params_preserve_return_to() {
+        let config = IDKitConfigWasm::CreateSession {
+            app_id: "app_staging_test".to_string(),
+            rp_context: sample_rp_context(),
+            action_description: None,
+            bridge_url: None,
+            override_connect_base_url: None,
+            return_to: Some("idkit://callback?step=create".to_string()),
+            environment: None,
+        };
+
+        let params = config
+            .to_params(ConstraintNode::Any { any: Vec::new() })
+            .expect("create session params");
+
+        assert_eq!(
+            params.return_to.as_deref(),
+            Some("idkit://callback?step=create")
+        );
+    }
+
+    #[test]
+    fn prove_session_params_preserve_return_to() {
+        let config = IDKitConfigWasm::ProveSession {
+            session_id: "session_123".to_string(),
+            app_id: "app_staging_test".to_string(),
+            rp_context: sample_rp_context(),
+            action_description: None,
+            bridge_url: None,
+            override_connect_base_url: None,
+            return_to: Some("idkit://callback?step=prove".to_string()),
+            environment: None,
+        };
+
+        let params = config
+            .to_params(ConstraintNode::Any { any: Vec::new() })
+            .expect("prove session params");
+
+        assert_eq!(
+            params.return_to.as_deref(),
+            Some("idkit://callback?step=prove")
+        );
+    }
+}