diff --git a/playwright/cdp.js b/playwright/cdp.js
index 72267d3..d334ce7 100644
--- a/playwright/cdp.js
+++ b/playwright/cdp.js
@@ -49,14 +49,14 @@ for (var run = 0; run<runs; run++) {
     await page.waitForFunction(() => {
         const price = document.querySelector('#product-price');
         return price.textContent.length > 0;
-    });
+    }, {}, {timeout: 100}); // timeout 100ms
 
 
     // ensure the reviews are loaded.
     await page.waitForFunction(() => {
         const reviews = document.querySelectorAll('#product-reviews > div');
         return reviews.length > 0;
-    });
+    }, {}, {timeout: 100}); // timeout 100ms
 
     let res = {};
 
diff --git a/puppeteer/cdp.js b/puppeteer/cdp.js
index a0b57f4..e93cd65 100644
--- a/puppeteer/cdp.js
+++ b/puppeteer/cdp.js
@@ -54,14 +54,14 @@ let metrics = [];
     await page.waitForFunction(() => {
         const price = document.querySelector('#product-price');
         return price.textContent.length > 0;
-    });
+    }, {timeout: 100}); // timeout 100ms
 
 
     // ensure the reviews are loaded.
     await page.waitForFunction(() => {
         const reviews = document.querySelectorAll('#product-reviews > div');
         return reviews.length > 0;
-    });
+    }, {timeout: 100}); // timeout 100ms
 
     let res = {};