diff --git a/js/common.js b/js/common.js
index 9f84445..f9d3563 100644
--- a/js/common.js
+++ b/js/common.js
@@ -24,7 +24,6 @@ function isLoggedIn() {
 
 // ========== API 请求封装 ==========
 async function apiRequest(endpoint, options = {}) {
-    // 使用 window.API_BASE，如果未定义则使用默认值
     const baseUrl = window.API_BASE || '/api/v1';
     const url = endpoint.startsWith('http') ? endpoint : `${baseUrl}${endpoint}`;
     
@@ -52,11 +51,21 @@ async function apiRequest(endpoint, options = {}) {
             return null;
         }
         
-        const data = await response.json();
+        // 先获取响应文本，用于调试
+        const text = await response.text();
+        
         if (!response.ok) {
-            throw new Error(data.detail || data.message || '请求失败');
+            let errorMsg;
+            try {
+                const errorData = JSON.parse(text);
+                errorMsg = errorData.detail || errorData.message || JSON.stringify(errorData);
+            } catch (e) {
+                errorMsg = text || '请求失败';
+            }
+            throw new Error(errorMsg);
         }
-        return data;
+        
+        return JSON.parse(text);
     } catch (error) {
         console.error('API 请求错误:', error);
         throw error;
diff --git a/pages/qrcode.php b/pages/qrcode.php
index cee7cf1..2e164c5 100644
--- a/pages/qrcode.php
+++ b/pages/qrcode.php
@@ -47,19 +47,20 @@ async function generateQR() {
         return;
     }
     
-    const size = document.getElementById('size').value;
+    const size = parseInt(document.getElementById('size').value);
     
     try {
         const data = await apiRequest('/qrcode/generate', {
             method: 'POST',
-            body: JSON.stringify({ content, size: parseInt(size) })
+            body: JSON.stringify({ content: content, size: size })
         });
         
         currentQRCode = data.qr_code;
         document.getElementById('qrContainer').innerHTML = `<img src="${data.qr_code}" alt="二维码" class="max-w-full mx-auto">`;
         document.getElementById('downloadBtn').classList.remove('hidden');
     } catch (error) {
-        showToast(error.message, 'error');
+        console.error('生成失败:', error);
+        showToast('生成失败: ' + (error.message || '未知错误'), 'error');
     }
 }