商铺端核销，调用相机报无效签名修复

packages/weixin-sdk/src/index.ts

@@ -1,5 +1,5 @@
 export { isWechatBrowser, isMiniProgram, getRuntimePlatform } from './env';
-export { initWechatJssdk, ensureJssdkReady, isJssdkReady } from './jssdk';
+export { initWechatJssdk, ensureJssdkReady, isJssdkReady, normalizeJssdkPageUrl, stripOAuthParamsFromLocation } from './jssdk';
 export {
   getWechatLocation,
   getWechatLocationDetailed,

packages/weixin-sdk/src/jssdk.ts

@@ -8,7 +8,32 @@ let configured = false;
 let configuredUrl: string | null = null;
 
 function currentPageUrl() {
-  return typeof window !== 'undefined' ? window.location.href.split('#')[0] : '';
+  return typeof window !== 'undefined' ? normalizeJssdkPageUrl(window.location.href) : '';
+}
+
+/** 参与 JSSDK 签名的页面 URL（去掉 hash、OAuth 回跳参数） */
+export function normalizeJssdkPageUrl(rawUrl: string): string {
+  try {
+    const url = new URL(rawUrl);
+    url.hash = '';
+    url.searchParams.delete('code');
+    url.searchParams.delete('state');
+    const query = url.searchParams.toString();
+    return `${url.origin}${url.pathname}${query ? `?${query}` : ''}`;
+  } catch {
+    return rawUrl.split('#')[0];
+  }
+}
+
+export function stripOAuthParamsFromLocation(): void {
+  if (typeof window === 'undefined') return;
+  const url = new URL(window.location.href);
+  if (!url.searchParams.has('code') && !url.searchParams.has('state')) return;
+  url.searchParams.delete('code');
+  url.searchParams.delete('state');
+  const query = url.searchParams.toString();
+  const next = `${url.pathname}${query ? `?${query}` : ''}${url.hash}`;
+  window.history.replaceState({}, '', next);
 }
 
 function loadScript(): Promise<void> {