diff --git a/packages/playwright-core/src/server/webkit/wkPage.ts b/packages/playwright-core/src/server/webkit/wkPage.ts
index 74fea4617f..d47292373e 100644
--- a/packages/playwright-core/src/server/webkit/wkPage.ts
+++ b/packages/playwright-core/src/server/webkit/wkPage.ts
@@ -570,7 +570,8 @@ export class WKPage implements PageDelegate {
         const objectId = JSON.parse(p.objectId);
         context = this._contextIdToContext.get(objectId.injectedScriptId);
       } else {
-        context = this._contextIdToContext.get(this._mainFrameContextId!);
+        // Pick any context if the parameter is a value.
+        context = [...this._contextIdToContext.values()].find(c => c.frame === this._page.mainFrame());
       }
       if (!context)
         return;
diff --git a/tests/library/browsercontext-basic.spec.ts b/tests/library/browsercontext-basic.spec.ts
index e0b74be625..373eb954a1 100644
--- a/tests/library/browsercontext-basic.spec.ts
+++ b/tests/library/browsercontext-basic.spec.ts
@@ -223,6 +223,14 @@ it('should not hang on promises after disabling javascript', async ({ browserNam
   expect(await page.evaluate(async () => 2)).toBe(2);
 });
 
+it('setContent should work after disabling javascript', async ({ contextFactory, browserName, isLinux }) => {
+  it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/18235' });
+  const context = await contextFactory({ javaScriptEnabled: false });
+  const page = await context.newPage();
+  await page.setContent('<h1>Hello</h1>');
+  await expect(page.locator('h1')).toHaveText('Hello');
+});
+
 it('should work with offline option', async ({ browser, server }) => {
   const context = await browser.newContext({ offline: true });
   const page = await context.newPage();