fix(proxy): separate upstream target resolution from proxy dispatch and add site-level proxy URLs

src/server/proxy-core/surfaces/chatSurface.ts

@@ -7,7 +7,7 @@ import { isTokenExpiredError } from '../../services/alertRules.js';
 import { shouldRetryProxyRequest } from '../../services/proxyRetryPolicy.js';
 import { resolveProxyUsageWithSelfLogFallback } from '../../services/proxyUsageFallbackService.js';
 import { mergeProxyUsage, parseProxyUsage } from '../../services/proxyUsageParser.js';
-import { resolveProxyUrlForSite, withSiteRecordProxyRequestInit } from '../../services/siteProxy.js';
+import { withSiteRecordProxyRequestInit } from '../../services/siteProxy.js';
 import { type DownstreamFormat } from '../../transformers/shared/normalized.js';
 import {
   buildClaudeCountTokensUpstreamRequest,
@@ -263,7 +263,6 @@ export async function handleChatSurfaceRequest(
     try {
         const endpointResult = await executeEndpointFlow({
           siteUrl: selected.site.url,
-          proxyUrl: resolveProxyUrlForSite(selected.site),
           endpointCandidates,
           buildRequest: (endpoint) => buildEndpointRequest(endpoint),
           dispatchRequest,

src/server/proxy-core/surfaces/openAiResponsesSurface.ts

@@ -7,7 +7,7 @@ import { isTokenExpiredError } from '../../services/alertRules.js';
 import { shouldRetryProxyRequest } from '../../services/proxyRetryPolicy.js';
 import { resolveProxyUsageWithSelfLogFallback } from '../../services/proxyUsageFallbackService.js';
 import { mergeProxyUsage, parseProxyUsage } from '../../services/proxyUsageParser.js';
-import { resolveProxyUrlForSite, withSiteRecordProxyRequestInit } from '../../services/siteProxy.js';
+import { withSiteRecordProxyRequestInit } from '../../services/siteProxy.js';
 import { openAiResponsesTransformer } from '../../transformers/openai/responses/index.js';
 import {
   buildUpstreamEndpointRequest,
@@ -364,7 +364,6 @@ export async function handleOpenAiResponsesSurfaceRequest(
       try {
         const endpointResult = await executeEndpointFlow({
           siteUrl: selected.site.url,
-          proxyUrl: resolveProxyUrlForSite(selected.site),
           endpointCandidates,
           buildRequest: (endpoint) => buildEndpointRequest(endpoint),
           dispatchRequest,

src/server/routes/api/sites.proxyUrl.test.ts

@@ -6,7 +6,7 @@ import { mkdtempSync } from 'node:fs';
 
 type DbModule = typeof import('../../db/index.js');
 
-describe('sites system proxy settings', () => {
+describe('sites proxy settings', () => {
   let app: FastifyInstance;
   let db: DbModule['db'];
   let schema: DbModule['schema'];
@@ -36,7 +36,7 @@ describe('sites system proxy settings', () => {
     delete process.env.DATA_DIR;
   });
 
-  it('stores useSystemProxy, external checkin url, and custom headers when creating a site', async () => {
+  it('stores proxy settings, external checkin url, and custom headers when creating a site', async () => {
     const response = await app.inject({
       method: 'POST',
       url: '/api/sites',
@@ -44,6 +44,7 @@ describe('sites system proxy settings', () => {
         name: 'proxy-site',
         url: 'https://proxy-site.example.com',
         platform: 'new-api',
+        proxyUrl: 'socks5://127.0.0.1:1080',
         useSystemProxy: true,
         customHeaders: JSON.stringify({
           'cf-access-client-id': 'site-client-id',
@@ -56,11 +57,13 @@ describe('sites system proxy settings', () => {
 
     expect(response.statusCode).toBe(200);
     const payload = response.json() as {
+      proxyUrl?: string | null;
       useSystemProxy?: boolean;
       customHeaders?: string | null;
       externalCheckinUrl?: string | null;
       globalWeight?: number;
     };
+    expect(payload.proxyUrl).toBe('socks5://127.0.0.1:1080');
     expect(payload.useSystemProxy).toBe(true);
     expect(payload.customHeaders).toBe('{"cf-access-client-id":"site-client-id","x-site-scope":"internal"}');
     expect(payload.externalCheckinUrl).toBe('https://checkin.example.com/welfare');
@@ -83,6 +86,22 @@ describe('sites system proxy settings', () => {
     expect((response.json() as { error?: string }).error).toContain('Invalid useSystemProxy');
   });
 
+  it('rejects invalid proxy url', async () => {
+    const response = await app.inject({
+      method: 'POST',
+      url: '/api/sites',
+      payload: {
+        name: 'proxy-site',
+        url: 'https://proxy-site.example.com',
+        platform: 'new-api',
+        proxyUrl: 'not-a-proxy',
+      },
+    });
+
+    expect(response.statusCode).toBe(400);
+    expect((response.json() as { error?: string }).error).toContain('Invalid proxyUrl');
+  });
+
   it('rejects invalid site global weight', async () => {
     const response = await app.inject({
       method: 'POST',
@@ -115,7 +134,7 @@ describe('sites system proxy settings', () => {
     expect((response.json() as { error?: string }).error).toContain('Invalid externalCheckinUrl');
   });
 
-  it('updates useSystemProxy for an existing site', async () => {
+  it('updates per-site proxy settings for an existing site', async () => {
     const created = await app.inject({
       method: 'POST',
       url: '/api/sites',
@@ -133,12 +152,15 @@ describe('sites system proxy settings', () => {
       method: 'PUT',
       url: `/api/sites/${site.id}`,
       payload: {
+        proxyUrl: 'http://127.0.0.1:8080',
         useSystemProxy: true,
       },
     });
 
     expect(response.statusCode).toBe(200);
-    expect((response.json() as { useSystemProxy?: boolean }).useSystemProxy).toBe(true);
+    const payload = response.json() as { proxyUrl?: string | null; useSystemProxy?: boolean };
+    expect(payload.proxyUrl).toBe('http://127.0.0.1:8080');
+    expect(payload.useSystemProxy).toBe(true);
   });
 
   it('rejects invalid custom headers json', async () => {

src/server/routes/api/sites.ts

@@ -2,7 +2,7 @@ import { FastifyInstance } from 'fastify';
 import { db, schema } from '../../db/index.js';
 import { and, eq } from 'drizzle-orm';
 import { detectSite } from '../../services/siteDetector.js';
-import { invalidateSiteProxyCache } from '../../services/siteProxy.js';
+import { invalidateSiteProxyCache, parseSiteProxyUrlInput } from '../../services/siteProxy.js';
 import { formatUtcSqlDateTime } from '../../services/localTimeService.js';
 import { invalidateTokenRouterCache } from '../../services/tokenRouter.js';
 import { parseSiteCustomHeadersInput } from '../../services/siteCustomHeaders.js';
@@ -222,6 +222,7 @@ export async function sitesRoutes(app: FastifyInstance) {
     name: string;
     url: string;
     platform?: string;
+    proxyUrl?: string | null;
     useSystemProxy?: boolean;
     customHeaders?: string | null;
     externalCheckinUrl?: string | null;
@@ -230,7 +231,7 @@ export async function sitesRoutes(app: FastifyInstance) {
     sortOrder?: number;
     globalWeight?: number;
   } }>('/api/sites', async (request, reply) => {
-    const { name, url, platform, useSystemProxy, customHeaders, externalCheckinUrl, status, isPinned, sortOrder, globalWeight } = request.body;
+    const { name, url, platform, proxyUrl, useSystemProxy, customHeaders, externalCheckinUrl, status, isPinned, sortOrder, globalWeight } = request.body;
     const normalizedStatus = normalizeSiteStatus(status);
     if (status !== undefined && !normalizedStatus) {
       return reply.code(400).send({ error: 'Invalid site status. Expected active or disabled.' });
@@ -239,6 +240,10 @@ export async function sitesRoutes(app: FastifyInstance) {
     if (useSystemProxy !== undefined && normalizedUseSystemProxy === null) {
       return reply.code(400).send({ error: 'Invalid useSystemProxy value. Expected boolean.' });
     }
+    const normalizedProxyUrl = parseSiteProxyUrlInput(proxyUrl);
+    if (!normalizedProxyUrl.valid) {
+      return reply.code(400).send({ error: 'Invalid proxyUrl. Expected a valid http(s)/socks proxy URL.' });
+    }
     const normalizedExternalCheckinUrl = normalizeOptionalExternalCheckinUrl(externalCheckinUrl);
     if (!normalizedExternalCheckinUrl.valid) {
       return reply.code(400).send({ error: 'Invalid externalCheckinUrl. Expected a valid http(s) URL.' });
@@ -275,6 +280,7 @@ export async function sitesRoutes(app: FastifyInstance) {
       name,
       url: url.replace(/\/+$/, ''),
       platform: detectedPlatform,
+      proxyUrl: normalizedProxyUrl.proxyUrl,
       useSystemProxy: normalizedUseSystemProxy ?? false,
       customHeaders: normalizedCustomHeaders.customHeaders,
       externalCheckinUrl: normalizedExternalCheckinUrl.url,
@@ -300,6 +306,7 @@ export async function sitesRoutes(app: FastifyInstance) {
     name?: string;
     url?: string;
     platform?: string;
+    proxyUrl?: string | null;
     useSystemProxy?: boolean;
     customHeaders?: string | null;
     externalCheckinUrl?: string | null;
@@ -328,6 +335,10 @@ export async function sitesRoutes(app: FastifyInstance) {
     if (body.useSystemProxy !== undefined && normalizedUseSystemProxy === null) {
       return reply.code(400).send({ error: 'Invalid useSystemProxy value. Expected boolean.' });
     }
+    const normalizedProxyUrl = parseSiteProxyUrlInput(body.proxyUrl);
+    if (!normalizedProxyUrl.valid) {
+      return reply.code(400).send({ error: 'Invalid proxyUrl. Expected a valid http(s)/socks proxy URL.' });
+    }
     const normalizedExternalCheckinUrl = normalizeOptionalExternalCheckinUrl(body.externalCheckinUrl);
     if (!normalizedExternalCheckinUrl.valid) {
       return reply.code(400).send({ error: 'Invalid externalCheckinUrl. Expected a valid http(s) URL.' });
@@ -352,6 +363,7 @@ export async function sitesRoutes(app: FastifyInstance) {
     if (body.name !== undefined) updates.name = body.name;
     if (body.url !== undefined) updates.url = body.url.replace(/\/+$/, '');
     if (body.platform !== undefined) updates.platform = body.platform;
+    if (normalizedProxyUrl.present) updates.proxyUrl = normalizedProxyUrl.proxyUrl;
     if (body.useSystemProxy !== undefined) updates.useSystemProxy = normalizedUseSystemProxy;
     if (normalizedCustomHeaders.present) updates.customHeaders = normalizedCustomHeaders.customHeaders;
     if (normalizedExternalCheckinUrl.present) updates.externalCheckinUrl = normalizedExternalCheckinUrl.url;

src/server/routes/proxy/endpointFlow.test.ts

@@ -73,6 +73,7 @@ describe('executeEndpointFlow', () => {
 
     expect(result.ok).toBe(true);
     expect(dispatchRequest).toHaveBeenCalledTimes(1);
+    expect(dispatchRequest.mock.calls[0]?.[1]).toBe('https://example.com/v1/responses');
     expect(fetchMock).not.toHaveBeenCalled();
   });
 
@@ -219,22 +220,6 @@ describe('executeEndpointFlow', () => {
     expect(fetchMock).toHaveBeenCalledTimes(1);
   });
 
-  it('uses proxyUrl for the default fetch path when no dispatch hook is provided', async () => {
-    fetchMock.mockResolvedValueOnce(toUndiciResponse(new Response(JSON.stringify({ ok: true }), {
-      status: 200,
-      headers: { 'content-type': 'application/json' },
-    })));
-
-    await executeEndpointFlow({
-      siteUrl: 'https://example.com',
-      proxyUrl: 'https://proxy.internal/base',
-      endpointCandidates: ['responses'],
-      buildRequest: () => requestFor('/v1/responses'),
-    });
-
-    expect(fetchMock.mock.calls[0]?.[0]).toBe('https://proxy.internal/base/v1/responses');
-  });
-
   it('returns normalized final error when all endpoints fail', async () => {
     fetchMock.mockResolvedValueOnce(toUndiciResponse(new Response(JSON.stringify({
       error: { message: 'upstream_error', type: 'upstream_error' },

src/server/routes/proxy/endpointFlow.ts

@@ -59,7 +59,6 @@ export function withUpstreamPath(path: string, message: string): string {
 
 type ExecuteEndpointFlowInput = {
   siteUrl: string;
-  proxyUrl?: string | null;
   endpointCandidates: UpstreamEndpoint[];
   buildRequest: (endpoint: UpstreamEndpoint, endpointIndex: number) => BuiltEndpointRequest;
   dispatchRequest?: (
@@ -73,12 +72,6 @@ type ExecuteEndpointFlowInput = {
   onAttemptSuccess?: (ctx: EndpointAttemptSuccessContext) => void | Promise<void>;
 };
 
-function buildAbsoluteUrl(base: string, path: string): string {
-  const normalizedBase = base.replace(/\/+$/, '');
-  const normalizedPath = path.replace(/^\/+/, '');
-  return normalizedPath ? `${normalizedBase}/${normalizedPath}` : normalizedBase;
-}
-
 export async function executeEndpointFlow(input: ExecuteEndpointFlowInput): Promise<EndpointFlowResult> {
   const endpointCount = input.endpointCandidates.length;
   if (endpointCount <= 0) {
@@ -96,10 +89,7 @@ export async function executeEndpointFlow(input: ExecuteEndpointFlowInput): Prom
   for (let endpointIndex = 0; endpointIndex < endpointCount; endpointIndex += 1) {
     const endpoint = input.endpointCandidates[endpointIndex] as UpstreamEndpoint;
     const request = input.buildRequest(endpoint, endpointIndex);
-    const defaultTarget = buildUpstreamUrl(input.siteUrl, request.path);
-    const targetUrl = input.proxyUrl
-      ? buildAbsoluteUrl(input.proxyUrl, request.path)
-      : defaultTarget;
+    const targetUrl = buildUpstreamUrl(input.siteUrl, request.path);
 
     let response = input.dispatchRequest
       ? await input.dispatchRequest(request, targetUrl)

src/server/services/siteProxy.test.ts

@@ -57,6 +57,22 @@ describe('siteProxy', () => {
       .toBeNull();
   });
 
+  it('prefers site-specific proxy url over the shared system proxy', async () => {
+    await db.insert(schema.settings).values({
+      key: 'system_proxy_url',
+      value: JSON.stringify('http://127.0.0.1:7890'),
+    }).run();
+
+    await db.run(sql`
+      INSERT INTO sites (name, url, platform, proxy_url, use_system_proxy)
+      VALUES ('proxy-site', 'https://proxy-site.example.com', 'new-api', 'socks5://127.0.0.1:1080', 1)
+    `);
+
+    const { resolveSiteProxyUrlByRequestUrl } = await import('./siteProxy.js');
+    expect(await resolveSiteProxyUrlByRequestUrl('https://proxy-site.example.com/v1/models'))
+      .toBe('socks5://127.0.0.1:1080');
+  });
+
   it('injects dispatcher when a site opts into the configured system proxy', async () => {
     await db.insert(schema.settings).values({
       key: 'system_proxy_url',
@@ -75,6 +91,20 @@ describe('siteProxy', () => {
     expect('dispatcher' in requestInit).toBe(true);
   });
 
+  it('injects dispatcher when a site defines its own proxy url', async () => {
+    await db.run(sql`
+      INSERT INTO sites (name, url, platform, proxy_url, use_system_proxy)
+      VALUES ('proxy-site', 'https://proxy-site.example.com', 'new-api', 'http://127.0.0.1:7890', 0)
+    `);
+
+    const { withSiteProxyRequestInit } = await import('./siteProxy.js');
+    const requestInit = await withSiteProxyRequestInit('https://proxy-site.example.com/v1/chat/completions', {
+      method: 'POST',
+    });
+
+    expect('dispatcher' in requestInit).toBe(true);
+  });
+
   it('injects a working dispatcher for socks5 system proxies', async () => {
     const upstreamServer = createServer((_request, response) => {
       response.writeHead(200, { 'content-type': 'application/json' });
@@ -170,6 +200,7 @@ describe('siteProxy', () => {
   it('merges site custom headers from site records even without cache lookup', async () => {
     const { withSiteRecordProxyRequestInit } = await import('./siteProxy.js');
     const requestInit = withSiteRecordProxyRequestInit({
+      proxyUrl: 'http://127.0.0.1:7890',
       useSystemProxy: false,
       customHeaders: JSON.stringify({
         'x-site-scope': 'site-level',
@@ -184,5 +215,6 @@ describe('siteProxy', () => {
 
     expect(headers.get('x-site-scope')).toBe('site-level');
     expect(headers.get('x-request-id')).toBe('req-1');
+    expect('dispatcher' in requestInit).toBe(true);
   });
 });

src/server/services/siteProxy.ts

@@ -31,6 +31,7 @@ const DEFAULT_PROXY_KEEPALIVE_INITIAL_DELAY_MS = 60_000;
 
 type SiteProxyRow = {
   siteUrl: string;
+  proxyUrl: string | null;
   useSystemProxy: boolean;
   customHeaders: string | null;
 };
@@ -42,6 +43,7 @@ type ParsedSiteProxyInput = {
 };
 
 type SiteProxyConfigLike = {
+  proxyUrl?: string | null;
   useSystemProxy?: boolean | null;
   customHeaders?: string | null;
 };
@@ -103,6 +105,7 @@ async function getCachedSiteProxyRows(nowMs = Date.now()): Promise<SiteProxyRow[
       db
         .select({
           siteUrl: schema.sites.url,
+          proxyUrl: schema.sites.proxyUrl,
           useSystemProxy: schema.sites.useSystemProxy,
           customHeaders: schema.sites.customHeaders,
         })
@@ -129,6 +132,7 @@ async function getCachedSiteProxyRows(nowMs = Date.now()): Promise<SiteProxyRow[
       loadedAt: nowMs,
       rows: rows.map((row) => ({
         siteUrl: normalizeSiteUrl(row.siteUrl),
+        proxyUrl: normalizeSiteProxyUrl(row.proxyUrl),
         useSystemProxy: !!row.useSystemProxy,
         customHeaders: typeof row.customHeaders === 'string' ? row.customHeaders : null,
       })),
@@ -368,7 +372,8 @@ async function resolveSiteRequestConfigByRequestUrl(requestUrl: string): Promise
 
   const rows = await getCachedSiteProxyRows();
   const matchedRow = findBestMatchingSiteRow(rows, normalizedRequestUrl);
-  const proxyUrl = matchedRow?.useSystemProxy ? siteProxyCache.systemProxyUrl : null;
+  const proxyUrl = matchedRow?.proxyUrl
+    || (matchedRow?.useSystemProxy ? siteProxyCache.systemProxyUrl : null);
   return {
     proxyUrl: proxyUrl || null,
     customHeaders: matchedRow?.customHeaders ?? null,
@@ -425,6 +430,8 @@ export function withExplicitProxyRequestInit(
 }
 
 export function resolveProxyUrlForSite(site: SiteProxyConfigLike | null | undefined): string | null {
+  const explicitProxyUrl = normalizeSiteProxyUrl(site?.proxyUrl);
+  if (explicitProxyUrl) return explicitProxyUrl;
   if (!site?.useSystemProxy) return null;
   return normalizeSiteProxyUrl(config.systemProxyUrl);
 }

src/web/pages/Sites.tsx

@@ -40,6 +40,7 @@ type SiteRow = {
   externalCheckinUrl?: string | null;
   platform?: string;
   status?: string;
+  proxyUrl?: string | null;
   useSystemProxy?: boolean;
   customHeaders?: string | null;
   globalWeight?: number;
@@ -382,6 +383,7 @@ export default function Sites() {
       url: form.url.trim(),
       externalCheckinUrl: form.externalCheckinUrl.trim(),
       platform: form.platform.trim(),
+      proxyUrl: form.proxyUrl.trim(),
       useSystemProxy: !!form.useSystemProxy,
       customHeaders: serializedCustomHeaders.customHeaders,
       globalWeight: Number(parsedGlobalWeight.toFixed(3)),
@@ -918,6 +920,15 @@ export default function Sites() {
               </div>
             )}
           </div>
+          <input
+            placeholder="站点代理 URL（可选，如 http://127.0.0.1:7890 或 socks5://127.0.0.1:1080）"
+            value={form.proxyUrl}
+            onChange={(e) => setForm((prev) => ({ ...prev, proxyUrl: e.target.value }))}
+            style={formInputStyle}
+          />
+          <div style={{ fontSize: 12, color: 'var(--color-text-muted)' }}>
+            留空则直连；填写后优先于系统代理。
+          </div>
           <label style={{
             display: 'flex',
             alignItems: 'center',

src/web/pages/helpers/sitesEditor.test.ts

@@ -16,6 +16,7 @@ describe('buildSiteSaveAction', () => {
         url: 'https://a.example.com/',
         externalCheckinUrl: 'https://checkin.a.example.com',
         platform: 'new-api',
+        proxyUrl: 'socks5://127.0.0.1:1080',
         customHeaders: '{"x-site-token":"alpha"}',
         useSystemProxy: false,
         globalWeight: 1.2,
@@ -29,6 +30,7 @@ describe('buildSiteSaveAction', () => {
         url: 'https://a.example.com/',
         externalCheckinUrl: 'https://checkin.a.example.com',
         platform: 'new-api',
+        proxyUrl: 'socks5://127.0.0.1:1080',
         customHeaders: '{"x-site-token":"alpha"}',
         useSystemProxy: false,
         globalWeight: 1.2,
@@ -44,6 +46,7 @@ describe('buildSiteSaveAction', () => {
         url: 'https://b.example.com',
         externalCheckinUrl: '',
         platform: 'one-api',
+        proxyUrl: '',
         useSystemProxy: true,
         customHeaders: '',
         globalWeight: 0.8,
@@ -58,6 +61,7 @@ describe('buildSiteSaveAction', () => {
         url: 'https://b.example.com',
         externalCheckinUrl: '',
         platform: 'one-api',
+        proxyUrl: '',
         useSystemProxy: true,
         customHeaders: '',
         globalWeight: 0.8,
@@ -74,6 +78,7 @@ describe('buildSiteSaveAction', () => {
           url: 'https://c.example.com',
           externalCheckinUrl: '',
           platform: '',
+          proxyUrl: '',
           useSystemProxy: false,
           customHeaders: '',
           globalWeight: 1,
@@ -85,16 +90,20 @@ describe('buildSiteSaveAction', () => {
   it('does not expose deprecated apiKey in site editor state', () => {
     expect(emptySiteForm()).not.toHaveProperty('apiKey');
     expect(emptySiteForm().customHeaders).toEqual([emptySiteCustomHeader()]);
+    expect(emptySiteForm().proxyUrl).toBe('');
     expect(siteFormFromSite({
       name: 'site-d',
       url: 'https://d.example.com',
       externalCheckinUrl: null,
       platform: 'new-api',
-      proxyUrl: null,
+      proxyUrl: 'http://127.0.0.1:8080',
       customHeaders: '{"x-site-token":"alpha"}',
       globalWeight: 1,
       apiKey: 'sk-legacy-site-key',
     })).not.toHaveProperty('apiKey');
+    expect(siteFormFromSite({
+      proxyUrl: 'http://127.0.0.1:8080',
+    }).proxyUrl).toBe('http://127.0.0.1:8080');
   });
 
   it('parses custom headers json into key value rows', () => {

src/web/pages/helpers/sitesEditor.ts

@@ -8,6 +8,7 @@ export type SiteForm = {
   url: string;
   externalCheckinUrl: string;
   platform: string;
+  proxyUrl: string;
   useSystemProxy: boolean;
   customHeaders: SiteCustomHeaderField[];
   globalWeight: string;
@@ -22,6 +23,7 @@ export type SiteSavePayload = {
   url: string;
   externalCheckinUrl: string;
   platform: string;
+  proxyUrl: string;
   useSystemProxy: boolean;
   customHeaders: string;
   globalWeight: number;
@@ -45,6 +47,7 @@ export function emptySiteForm(): SiteForm {
     url: '',
     externalCheckinUrl: '',
     platform: '',
+    proxyUrl: '',
     useSystemProxy: false,
     customHeaders: [emptySiteCustomHeader()],
     globalWeight: '1',
@@ -76,8 +79,9 @@ function parseCustomHeadersForEditor(raw: unknown): SiteCustomHeaderField[] {
   }
 }
 
-export function siteFormFromSite(site: Partial<Omit<SiteForm, 'customHeaders' | 'globalWeight' | 'externalCheckinUrl' | 'useSystemProxy'>> & {
+export function siteFormFromSite(site: Partial<Omit<SiteForm, 'customHeaders' | 'globalWeight' | 'externalCheckinUrl' | 'proxyUrl' | 'useSystemProxy'>> & {
   externalCheckinUrl?: string | null;
+  proxyUrl?: string | null;
   useSystemProxy?: boolean | null;
   customHeaders?: string | null;
   globalWeight?: number | string | null;
@@ -89,6 +93,7 @@ export function siteFormFromSite(site: Partial<Omit<SiteForm, 'customHeaders' |
     url: site.url ?? '',
     externalCheckinUrl: site.externalCheckinUrl ?? '',
     platform: site.platform ?? '',
+    proxyUrl: site.proxyUrl ?? '',
     useSystemProxy: !!site.useSystemProxy,
     customHeaders: parseCustomHeadersForEditor(site.customHeaders),
     globalWeight,