diff --git a/pc-sdk-probe.sh b/pc-sdk-probe.sh
index afb5579..24f210d 100755
--- a/pc-sdk-probe.sh
+++ b/pc-sdk-probe.sh
@@ -205,7 +205,7 @@ cat <<'EOF'
     }
     console.warn("[probe] 清理完成，请关闭其它同源标签页后刷新页面并重新登录");
   };
-  window.__deployTestManualLogin = async ({ userID, token, apiAddr, wsAddr } = {}) => {
+  window.__deployTestManualLogin = async ({ userID, token, apiAddr, wsAddr, dataDir = "./" } = {}) => {
     userID = userID || await window.__deployTestReadLocalForage("IM_USERID");
     token = token || await window.__deployTestReadLocalForage("IM_TOKEN");
     const operationID = `deploy-test-${Date.now()}`;
@@ -214,7 +214,7 @@ cat <<'EOF'
       platformID: 5,
       apiAddr: apiAddr || `${gatewayOrigin}/api/im`,
       wsAddr: wsAddr || `${gatewayOrigin.replace(/^http/, "ws")}/msg_gateway`,
-      dataDir: "./",
+      dataDir: String(dataDir),
       logLevel: 5,
       isLogStandardOutput: true,
       logFilePath: "./",
@@ -230,7 +230,7 @@ cat <<'EOF'
     console.log(`[probe ${stamp()}] manual login result`, result);
     return result;
   };
-  window.__deployTestManualInitDB = async (userID) => {
+  window.__deployTestManualInitDB = async (userID, dataDir = "./") => {
     userID = userID || await window.__deployTestReadLocalForage("IM_USERID") || "6087132211";
     console.log(`[probe ${stamp()}] manual setSqlWasmPath`, "/sql-wasm.wasm");
     if (typeof window.setSqlWasmPath === "function") {
@@ -244,11 +244,11 @@ cat <<'EOF'
         console.error(`[probe ${stamp()}] manual setSqlWasmPath failed`, err);
       }
     }
-    console.log(`[probe ${stamp()}] manual initDB start`, { userID, dataDir: "./" });
+    console.log(`[probe ${stamp()}] manual initDB start`, { userID, dataDir });
     const timeout = new Promise((_, reject) => {
       setTimeout(() => reject(new Error("manual window.initDB timeout after 15000ms")), 15000);
     });
-    const result = await Promise.race([window.initDB(String(userID), "./"), timeout]);
+    const result = await Promise.race([window.initDB(String(userID), String(dataDir)), timeout]);
     console.log(`[probe ${stamp()}] manual initDB result`, result);
     return result;
   };
@@ -279,6 +279,11 @@ window.__deployTestManualLogin({
   token: "把 console 里 SDK login args 的 token 粘到这里"
 })
 
+若默认 dataDir="./" 仍报 initDB timeout，可验证是否是浏览器 IDBFS 路径问题：
+
+await window.__deployTestManualLogin({ dataDir: "" })
+await window.__deployTestManualInitDB(undefined, "")
+
 若报 10006 init database invoke javascript timeout，先查看并清理当前站点浏览器数据库：
 
 await window.__deployTestListBrowserDBs()