test: use absolute URLs in post-data smoke spec

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: JohnMcLear

static/tests/frontend-new/specs/smoke.spec.ts

@@ -11,44 +11,48 @@ const getPadIdFromUrl = (url: string) => {
   return match[1];
 };
 
+const absoluteUrl = (pageUrl: string, path: string) => new URL(path, pageUrl).toString();
+
 test.describe('ep_post_data', () => {
   test('pad loads with plugin installed', async ({page}) => {
     const padBody = await getPadBody(page);
     await expect(padBody).toBeVisible();
   });
 
   test('PATCH /post appends text to an existing pad', async ({page}) => {
-    const padId = getPadIdFromUrl(page.url());
+    const pageUrl = page.url();
+    const padId = getPadIdFromUrl(pageUrl);
+    const postUrl = absoluteUrl(pageUrl, '/post');
 
-    const postResponse = await page.request.fetch('/post', {
-      method: 'POST',
+    const postResponse = await page.request.post(postUrl, {
       headers: {'X-PAD-ID': padId},
       data: 'first',
     });
     expect(postResponse.ok()).toBeTruthy();
 
-    const patchResponse = await page.request.fetch('/post', {
+    const patchResponse = await page.request.fetch(postUrl, {
       method: 'PATCH',
       headers: {'X-PAD-ID': padId},
       data: ' second',
     });
     expect(patchResponse.ok()).toBeTruthy();
 
-    const txtResponse = await page.request.get(`/p/${padId}/export/txt`);
+    const txtResponse = await page.request.get(absoluteUrl(pageUrl, `/p/${padId}/export/txt`));
     expect(txtResponse.ok()).toBeTruthy();
     expect((await txtResponse.text()).trimEnd()).toBe('first second');
   });
 
   test('PATCH /post creates pad when it does not exist', async ({page}) => {
+    const pageUrl = page.url();
     const padId = `ep-post-data-${Date.now().toString(36)}-${Math.random().toString(36).slice(2, 10)}`;
-    const patchResponse = await page.request.fetch('/post', {
+    const patchResponse = await page.request.fetch(absoluteUrl(pageUrl, '/post'), {
       method: 'PATCH',
       headers: {'X-PAD-ID': padId},
       data: 'created via patch',
     });
     expect(patchResponse.ok()).toBeTruthy();
 
-    const txtResponse = await page.request.get(`/p/${padId}/export/txt`);
+    const txtResponse = await page.request.get(absoluteUrl(pageUrl, `/p/${padId}/export/txt`));
     expect(txtResponse.ok()).toBeTruthy();
     expect((await txtResponse.text()).trimEnd()).toBe('created via patch');
   });