diff --git a/nodejs/routes/oauth_client.js b/nodejs/routes/oauth_client.js
index 18569cc..b35213f 100644
--- a/nodejs/routes/oauth_client.js
+++ b/nodejs/routes/oauth_client.js
@@ -97,7 +97,7 @@ router.delete('/:client_id', async function(req, res, next) {
 		await permission.byGroup(req.user, [ADMIN_GROUP]);
 
 		const client = await OAuthClient.get(req.params.client_id);
-		await client.remove();
+		await client.delete();
 
 		return res.json({
 			client_id: req.params.client_id,
diff --git a/nodejs/tests/no_native_dialogs.test.js b/nodejs/tests/no_native_dialogs.test.js
new file mode 100644
index 0000000..ac394ad
--- /dev/null
+++ b/nodejs/tests/no_native_dialogs.test.js
@@ -0,0 +1,45 @@
+'use strict';
+
+// Regression guard: native alert()/confirm()/prompt() calls block all further
+// browser events on the page (found live, mid browser-automation testing, on
+// directory.ejs's "Rotate Client Secret" — it froze the tab entirely) and are
+// visually inconsistent with the rest of the UI. Every call site was removed
+// in favor of app.messages.action/confirm/toast and app.modal.open; this test
+// keeps it that way.
+
+const fs = require('fs');
+const path = require('path');
+
+const ROOTS = ['views', 'public/js', 'public/lib/js'].map((d) => path.join(__dirname, '..', d));
+
+// Matches a bare alert(/confirm(/prompt( call, but not app.messages.*,
+// app.modal.*, or identifiers merely containing these words (e.g.
+// "confirmation", ".confirmed").
+const NATIVE_DIALOG_RE = /(^|[^.\w$])(alert|confirm|prompt)\s*\(/g;
+
+function walk(dir) {
+	let files = [];
+	if (!fs.existsSync(dir)) return files;
+	for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
+		const full = path.join(dir, entry.name);
+		if (entry.isDirectory()) files = files.concat(walk(full));
+		else if (/\.(ejs|js)$/.test(entry.name)) files.push(full);
+	}
+	return files;
+}
+
+test('no view or client-side script calls native alert()/confirm()/prompt()', () => {
+	const offenders = [];
+	for (const root of ROOTS) {
+		for (const file of walk(root)) {
+			const src = fs.readFileSync(file, 'utf8');
+			let m;
+			NATIVE_DIALOG_RE.lastIndex = 0;
+			while ((m = NATIVE_DIALOG_RE.exec(src))) {
+				const line = src.slice(0, m.index).split('\n').length;
+				offenders.push(`${path.relative(path.join(__dirname, '..'), file)}:${line} — ${m[2]}(`);
+			}
+		}
+	}
+	expect(offenders).toEqual([]);
+});
diff --git a/nodejs/tests/oauth.test.js b/nodejs/tests/oauth.test.js
index 5613a1f..ffd0764 100644
--- a/nodejs/tests/oauth.test.js
+++ b/nodejs/tests/oauth.test.js
@@ -69,6 +69,51 @@ describe('OAuth client management API — /api/oauth/client', () => {
 		expect(res.body.results).not.toHaveProperty('client_secret_hash');
 	});
 
+	test('PUT persists — a changed name survives a fresh GET', async () => {
+		const created = await request(app)
+			.post('/api/oauth/client/')
+			.set('auth-token', token)
+			.send({ name: 'put-persist-test', redirect_uris: REDIRECT_URI });
+		expect(created.status).toBe(200);
+		const id = created.body.results.client_id;
+
+		const updated = await request(app)
+			.put(`/api/oauth/client/${id}`)
+			.set('auth-token', token)
+			.send({ name: 'put-persist-test-renamed' });
+		expect(updated.status).toBe(200);
+		expect(updated.body.results.name).toBe('put-persist-test-renamed');
+
+		const fetched = await request(app).get(`/api/oauth/client/${id}`).set('auth-token', token);
+		expect(fetched.status).toBe(200);
+		expect(fetched.body.results.name).toBe('put-persist-test-renamed');
+
+		await request(app).delete(`/api/oauth/client/${id}`).set('auth-token', token);
+	});
+
+	// Regression: this route called client.remove(), but OAuthClient wraps
+	// @simpleworkjs/orm's Resource model, whose instance method is .delete()
+	// — .remove() doesn't exist on it (unlike the model-redis Tables
+	// elsewhere in this app, e.g. api_token.js, which really do have
+	// .remove()). The route's try/catch turned the resulting TypeError into
+	// a plain 500 JSON response rather than a thrown exception, so every
+	// prior DELETE call in this file's cleanup hooks silently "succeeded"
+	// from Jest's point of view while leaving the client un-deleted.
+	test('DELETE persists — the client is actually gone, not just a 200', async () => {
+		const created = await request(app)
+			.post('/api/oauth/client/')
+			.set('auth-token', token)
+			.send({ name: 'delete-persist-test', redirect_uris: REDIRECT_URI });
+		expect(created.status).toBe(200);
+		const id = created.body.results.client_id;
+
+		const deleted = await request(app).delete(`/api/oauth/client/${id}`).set('auth-token', token);
+		expect(deleted.status).toBe(200);
+
+		const fetched = await request(app).get(`/api/oauth/client/${id}`).set('auth-token', token);
+		expect(fetched.status).toBe(404);
+	});
+
 	test('list then rotate a client by its returned client_id (the bootstrap path)', async () => {
 		// Reproduces exactly what the theta-env bootstrap does: create, list,
 		// find by name, rotate by the client_id from the list response. Uses a
@@ -90,7 +135,11 @@ describe('OAuth client management API — /api/oauth/client', () => {
 		expect(rotated.status).toBe(200);
 		expect(rotated.body.client_secret).toBeTruthy();
 
-		await request(app).delete(`/api/oauth/client/${found.client_id}`).set('auth-token', token);
+		const deleted = await request(app).delete(`/api/oauth/client/${found.client_id}`).set('auth-token', token);
+		expect(deleted.status).toBe(200);
+
+		const afterDelete = await request(app).get(`/api/oauth/client/${found.client_id}`).set('auth-token', token);
+		expect(afterDelete.status).toBe(404);
 	});
 
 	test('GET /:id unknown id returns 404, not 500', async () => {