Merge branch 'main' into feat/multi-host

webui/src/lib/__tests__/api.test.ts

@@ -11,11 +11,13 @@ describe('API Error Handling', () => {
   })
 
   it('converts HTTP errors to meaningful messages', async () => {
-    mockFetch.mockResolvedValue({
+    const mockResponse = {
       ok: false,
       status: 409,
-      text: () => Promise.resolve('Instance already exists')
-    })
+      text: () => Promise.resolve('Instance already exists'),
+      clone: function() { return this }
+    }
+    mockFetch.mockResolvedValue(mockResponse)
 
     await expect(instancesApi.create('existing', {}))
       .rejects
@@ -23,11 +25,13 @@ describe('API Error Handling', () => {
   })
 
   it('handles empty error responses gracefully', async () => {
-    mockFetch.mockResolvedValue({
+    const mockResponse = {
       ok: false,
       status: 500,
-      text: () => Promise.resolve('')
-    })
+      text: () => Promise.resolve(''),
+      clone: function() { return this }
+    }
+    mockFetch.mockResolvedValue(mockResponse)
 
     await expect(instancesApi.list())
       .rejects

webui/src/lib/api.ts

@@ -49,11 +49,8 @@ async function apiCall<T>(
     } else {
       // Handle empty responses for JSON endpoints
       const contentLength = response.headers.get('content-length');
-      if (contentLength === '0' || contentLength === null) {
-        const text = await response.text();
-        if (text.trim() === '') {
-          return {} as T; // Return empty object for empty JSON responses
-        }
+      if (contentLength === '0') {
+        return {} as T; // Return empty object for empty JSON responses
       }
       const data = await response.json() as T;
       return data;

webui/src/lib/errorUtils.ts

@@ -26,7 +26,8 @@ export async function handleApiError(response: Response): Promise<void> {
   }
 
   if (!response.ok) {
-    const errorMessage = await parseErrorResponse(response)
+    // Clone the response before reading to avoid consuming the body stream
+    const errorMessage = await parseErrorResponse(response.clone())
     throw new Error(errorMessage)
   }
 }