fix

dist/index.d.ts

@@ -18,6 +18,10 @@ interface ScanConfigOptions {
    * 跨域 iframe 无法读取父页地址时需手动设为当前微信内打开的页面链接。
    */
   wxJssdkSignatureUrl?: string,
+  /**
+   * 页面 URL 变化后是否自动重新初始化微信 JSSDK（默认 true，避免扫一扫失效）
+   */
+  wxJssdkAutoReinitOnUrlChange?: boolean,
   /**
    * 桥接是否启用，默认启用
    */

src/services/payment/index.js

@@ -13,6 +13,7 @@ import { runPaymentDialogChildAction } from "./paymentDialogChild";
 
 registerPaymentDialogChildRunner(runPaymentDialogChildAction);
 import { resolvePaymentAmount } from "./paymentAmount";
+import { ensureWechatOpenid } from "./oauth";
 
 function buildInvokeResult(payType, extra) {
   return Object.assign({ payType, invoked: true }, extra || {});

src/services/wx/index.js

@@ -3,12 +3,15 @@ import { readWxLikeEnvFromWindow, getParentWxEnvReport } from "../embedEnvProbe"
 import { resolveUseParentProxy } from "../embedProxy";
 import { request } from "../../utils/request";
 import { toAny } from "../../utils/toany";
+import { printDebug } from "../../utils/logger";
 
 const WX_JS_SDK_URL = "https://res.wx.qq.com/open/js/jweixin-1.6.0.js";
 const WX_SCAN_API = "scanQRCode";
 
 let _wxReadyPromise = null;
 let _wxReady = false;
+let _wxSignatureUrl = "";
+let _urlWatchInstalled = false;
 
 function getWx() {
     if (typeof wx !== "undefined") {
@@ -69,6 +72,84 @@ function getPageUrlForWxJssdkSignature() {
     return window.location.href.split("#")[0];
 }
 
+function isWxJssdkAutoReinitEnabled() {
+  return getConfig("wxJssdkAutoReinitOnUrlChange") !== false;
+}
+
+function getWxJssdkWatchWindow() {
+  const override = getConfig("wxJssdkSignatureUrl");
+  if (override || typeof window === "undefined") {
+    return typeof window !== "undefined" ? window : null;
+  }
+  if (resolveUseParentProxy()) {
+    try {
+      if (window.parent && window.parent !== window) {
+        return window.parent;
+      }
+    } catch (e) {
+      // 跨域父页不可读，回退监听当前页
+    }
+  }
+  return window;
+}
+
+function resetWxJssdkState() {
+  _wxReady = false;
+  _wxReadyPromise = null;
+}
+
+function isWxSignatureUrlChanged() {
+  const current = getPageUrlForWxJssdkSignature();
+  return !!(_wxSignatureUrl && current && _wxSignatureUrl !== current);
+}
+
+function patchHistoryMethod(history, methodName, callback) {
+  if (!history || typeof history[methodName] !== "function") {
+    return;
+  }
+  const original = history[methodName];
+  if (original.__iscanWxPatched__) {
+    return;
+  }
+  const patched = function patchedHistoryMethod() {
+    const result = original.apply(this, arguments);
+    callback();
+    return result;
+  };
+  patched.__iscanWxPatched__ = true;
+  history[methodName] = patched;
+}
+
+function installWxJssdkUrlWatcher() {
+  if (_urlWatchInstalled || !isWxJssdkAutoReinitEnabled()) {
+    return;
+  }
+  const watchWin = getWxJssdkWatchWindow();
+  if (!watchWin || !watchWin.addEventListener) {
+    return;
+  }
+  _urlWatchInstalled = true;
+
+  const scheduleReinit = () => {
+    if (!isWxEnv() || !isWxJssdkAutoReinitEnabled()) {
+      return;
+    }
+    if (!isWxSignatureUrlChanged()) {
+      return;
+    }
+    printDebug("wx jssdk url changed, reinitializing:", getPageUrlForWxJssdkSignature());
+    resetWxJssdkState();
+    initWxJssdk().catch((err) => {
+      printDebug("wx jssdk reinit failed:", err && err.message ? err.message : err);
+    });
+  };
+
+  watchWin.addEventListener("popstate", scheduleReinit);
+  watchWin.addEventListener("hashchange", scheduleReinit);
+  patchHistoryMethod(watchWin.history, "pushState", scheduleReinit);
+  patchHistoryMethod(watchWin.history, "replaceState", scheduleReinit);
+}
+
 function fetchWxConfig() {
     let initWechatJssdk = toAny(getConfig("initWechatJssdk"), {});
     if (!!initWechatJssdk.sdkConfig) {
@@ -139,6 +220,10 @@ export function initWxJssdk() {
     if (!isWxEnv()) {
         return Promise.resolve();
     }
+    installWxJssdkUrlWatcher();
+    if (isWxSignatureUrlChanged()) {
+        resetWxJssdkState();
+    }
     if (_wxReadyPromise) {
         return _wxReadyPromise;
     }
@@ -158,10 +243,12 @@ export function initWxJssdk() {
         return new Promise((resolve, reject) => {
             wx.ready(() => {
                 _wxReady = true;
+                _wxSignatureUrl = getPageUrlForWxJssdkSignature();
                 resolve(wx);
             });
             wx.error(err => {
                 _wxReady = false;
+                _wxSignatureUrl = "";
                 _wxReadyPromise = null;
                 reject(err);
             });
@@ -171,6 +258,7 @@ export function initWxJssdk() {
         });
     }).catch(err => {
         _wxReady = false;
+        _wxSignatureUrl = "";
         _wxReadyPromise = null;
         throw err;
     });

types/index.d.ts

@@ -18,6 +18,10 @@ interface ScanConfigOptions {
    * 跨域 iframe 无法读取父页地址时需手动设为当前微信内打开的页面链接。
    */
   wxJssdkSignatureUrl?: string,
+  /**
+   * 页面 URL 变化后是否自动重新初始化微信 JSSDK（默认 true，避免扫一扫失效）
+   */
+  wxJssdkAutoReinitOnUrlChange?: boolean,
   /**
    * 桥接是否启用，默认启用
    */