Old version
April 9, 2026 06:07 UTC
63967223d91ad558f0ab912d2f8f11fa966b7a9ce96ffc9badfd80fa5679efd8
CA-V-001784
New version
April 11, 2026 06:06 UTC
6c051a64a1a3b9e31806d7dee7e793d666025a80a0e313f84cc1a162b6105672
CA-V-001801
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Change Summary
The HTML security code for Booking.com's Terms and Conditions page was updated on April 11, 2026. The change involved updating nonce values (security tokens) and timestamp parameters in JavaScript code that manages bot verification challenges. This is a technical security refresh with no change to the actual terms, rights, or obligations stated in the document.
low severity
0 Sentences added
0 Sentences removed
1 Sentences modified
3 Sentences before
3 Sentences after
Added
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BeforeAfter
0<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title></title> <style> body { font-family: "Arial"; } </style> <script type="text/javascript" nonce="17757148383100.6089120799561484"> function getAjaxObject() { var ajax; if (window.XMLHttpRequest) { try { ajax = new window.XMLHttpRequest(); // XMLHttpRequest (Mozilla, Opera, Safari, etc.) } catch (e) { return false; } } else { var msXML = new Array( // XMLHttpRequest (IE with ActiveX) "Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "Msxml2.XMLHTTP.3.0", "Msxml2.XMLHTTP", "Microsoft.XMLHTTP" ); for (var i = 0; i < msXML.length; i++) { // We want to get the best we can try { ajax = new ActiveXObject(msXML[i]); break; } catch (e) { return false; } } } return ajax; } function sendAjaxRequest(url, data, callback) { const xhr = getAjaxObject(); if (!xhr) { callback(new Error('Unable to create XMLHttpRequest object'), null); return; } xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.setRequestHeader('Accept', 'application/json'); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { if (xhr.status >= 200 && xhr.status < 300) { try { const response = JSON.parse(xhr.responseText); callback(null, response); } catch (error) { callback(error, null); } } else { callback(new Error('HTTP error! status: ' + xhr.status), null); } } }; xhr.onerror = function() { callback(new Error('Network error'), null); }; xhr.send(JSON.stringify(data)); } function reportChallengeError(log, challengeError) { try { sendAjaxRequest( 'https://reports.booking.com/chal_report', { log: log, message: challengeError.message, stack: challengeError.stack }, (e, response) => { if (e) { console.error('Request failed:', e); } else { console.log('Success:', response); } } ); } catch (e) {} } function setupErrorHandling() { // Handle JavaScript errors window.addEventListener('error', function(event) { var error = { message: event.message, stack: event.error ? event.error.stack : '' }; reportChallengeError('javascript_error', error); }); // Handle unhandled promise rejections window.addEventListener('unhandledrejection', function(event) { var error = { message: event.reason && event.reason.message ? event.reason.message : 'Unhandled Promise Rejection', stack: event.reason && event.reason.stack ? event.reason.stack : '' }; reportChallengeError('promise_rejection', error); }); } // Initialize error handling setupErrorHandling(); </script> <script type="text/javascript" nonce="17757148383100.6089120799561484"> window.awsWafCookieDomainList = ['booking.com']; </script> <script type="text/javascript" src="https://www.booking.com/__challenge_h78IRKX3kpQxScCExxShBNwRUlb/d8c14d4960ca/a18a4859af9c/challenge.js" nonce="17757148383100.6089120799561484"></script> <script type="text/javascript" nonce="17757148383100.6089120799561484"> const maxLocationLength = 2047 - "&chal_t=1760623098515&force_referer=".length; function searchStringWithNewParam(search, key, value) { value = encodeURIComponent(value); if (!search.startsWith('?')) { return search + `?${key}=${value}`; } else if (search.endsWith('&')) { return search + `${key}=${value}`; } else { return search + `&${key}=${value}`; } } function getNewUrlWithAddedParameter(location, parameters) { let newSearch = location.search; for (let parameterName of Object.keys(parameters)) { if (!newSearch.includes(`${parameterName}=`)) { newSearch = searchStringWithNewParam(newSearch, parameterName, parameters[parameterName]); } } let newHref = `${location.pathname}${newSearch}${location.hash}`; if (newHref.length < maxLocationLength) { return newHref; } return null; } </script> </head> <body> <div id="challenge-container"></div> <script type="text/javascript" nonce="17757148383100.6089120799561484"> let newHref; try { setTimeout(() => { try { reportChallengeError("Reloaded without updating url", new Error("")); } catch (e) {} document.location.reload(); }, 20000); let referrer = document.referrer; let availableLength = maxLocationLength - document.location.href.length; if (encodeURIComponent(referrer).length > availableLength) { let parsedReferrer = new URL(referrer); referrer = parsedReferrer.origin; if (encodeURIComponent(referrer + parsedReferrer.pathname).length < availableLength) { referrer = referrer + parsedReferrer.pathname; } } let parameters = { chal_t: 1775714838310, force_referer: referrer, }; newHref = getNewUrlWithAddedParameter(document.location, parameters); } catch (e) { reportChallengeError("Failed while getting new href", e); } newHref = newHref || document.location.href; AwsWafIntegration.saveReferrer(); AwsWafIntegration.checkForceRefresh().then((forceRefresh) => { if (forceRefresh) { AwsWafIntegration.forceRefreshToken().then(() => { window.location.href = newHref; }); } else { AwsWafIntegration.getToken().then(() => { window.location.href = newHref; }); } }); </script> <noscript> <h1>JavaScript is disabled</h1> In order to continue, we need to verify that you're not a robot.0<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title></title> <style> body { font-family: "Arial"; } </style> <script type="text/javascript" nonce="17758875775350.8999136908511339"> function getAjaxObject() { var ajax; if (window.XMLHttpRequest) { try { ajax = new window.XMLHttpRequest(); // XMLHttpRequest (Mozilla, Opera, Safari, etc.) } catch (e) { return false; } } else { var msXML = new Array( // XMLHttpRequest (IE with ActiveX) "Msxml2.XMLHTTP.5.0", "Msxml2.XMLHTTP.4.0", "Msxml2.XMLHTTP.3.0", "Msxml2.XMLHTTP", "Microsoft.XMLHTTP" ); for (var i = 0; i < msXML.length; i++) { // We want to get the best we can try { ajax = new ActiveXObject(msXML[i]); break; } catch (e) { return false; } } } return ajax; } function sendAjaxRequest(url, data, callback) { const xhr = getAjaxObject(); if (!xhr) { callback(new Error('Unable to create XMLHttpRequest object'), null); return; } xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/json'); xhr.setRequestHeader('Accept', 'application/json'); xhr.onreadystatechange = function() { if (xhr.readyState === 4) { if (xhr.status >= 200 && xhr.status < 300) { try { const response = JSON.parse(xhr.responseText); callback(null, response); } catch (error) { callback(error, null); } } else { callback(new Error('HTTP error! status: ' + xhr.status), null); } } }; xhr.onerror = function() { callback(new Error('Network error'), null); }; xhr.send(JSON.stringify(data)); } function reportChallengeError(log, challengeError) { try { sendAjaxRequest( 'https://reports.booking.com/chal_report', { log: log, message: challengeError.message, stack: challengeError.stack }, (e, response) => { if (e) { console.error('Request failed:', e); } else { console.log('Success:', response); } } ); } catch (e) {} } function setupErrorHandling() { // Handle JavaScript errors window.addEventListener('error', function(event) { var error = { message: event.message, stack: event.error ? event.error.stack : '' }; reportChallengeError('javascript_error', error); }); // Handle unhandled promise rejections window.addEventListener('unhandledrejection', function(event) { var error = { message: event.reason && event.reason.message ? event.reason.message : 'Unhandled Promise Rejection', stack: event.reason && event.reason.stack ? event.reason.stack : '' }; reportChallengeError('promise_rejection', error); }); } // Initialize error handling setupErrorHandling(); </script> <script type="text/javascript" nonce="17758875775350.8999136908511339"> window.awsWafCookieDomainList = ['booking.com']; </script> <script type="text/javascript" src="https://www.booking.com/__challenge_h78IRKX3kpQxScCExxShBNwRUlb/d8c14d4960ca/a18a4859af9c/challenge.js" nonce="17758875775350.8999136908511339"></script> <script type="text/javascript" nonce="17758875775350.8999136908511339"> const maxLocationLength = 2047 - "&chal_t=1760623098515&force_referer=".length; function searchStringWithNewParam(search, key, value) { value = encodeURIComponent(value); if (!search.startsWith('?')) { return search + `?${key}=${value}`; } else if (search.endsWith('&')) { return search + `${key}=${value}`; } else { return search + `&${key}=${value}`; } } function getNewUrlWithAddedParameter(location, parameters) { let newSearch = location.search; for (let parameterName of Object.keys(parameters)) { if (!newSearch.includes(`${parameterName}=`)) { newSearch = searchStringWithNewParam(newSearch, parameterName, parameters[parameterName]); } } let newHref = `${location.pathname}${newSearch}${location.hash}`; if (newHref.length < maxLocationLength) { return newHref; } return null; } </script> </head> <body> <div id="challenge-container"></div> <script type="text/javascript" nonce="17758875775350.8999136908511339"> let newHref; try { setTimeout(() => { try { reportChallengeError("Reloaded without updating url", new Error("")); } catch (e) {} document.location.reload(); }, 20000); let referrer = document.referrer; let availableLength = maxLocationLength - document.location.href.length; if (encodeURIComponent(referrer).length > availableLength) { let parsedReferrer = new URL(referrer); referrer = parsedReferrer.origin; if (encodeURIComponent(referrer + parsedReferrer.pathname).length < availableLength) { referrer = referrer + parsedReferrer.pathname; } } let parameters = { chal_t: 1775887577535, force_referer: referrer, }; newHref = getNewUrlWithAddedParameter(document.location, parameters); } catch (e) { reportChallengeError("Failed while getting new href", e); } newHref = newHref || document.location.href; AwsWafIntegration.saveReferrer(); AwsWafIntegration.checkForceRefresh().then((forceRefresh) => { if (forceRefresh) { AwsWafIntegration.forceRefreshToken().then(() => { window.location.href = newHref; }); } else { AwsWafIntegration.getToken().then(() => { window.location.href = newHref; }); } }); </script> <noscript> <h1>JavaScript is disabled</h1> In order to continue, we need to verify that you're not a robot.
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