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function IsSandboxSupported() {
if ('sandbox' in document.createElement('iframe')) {
return true;
}
return false;
}
function DisableTestForNonSupportingBrowsers() {
//check if sandbox is supported by the browser
if (!IsSandboxSupported()) {
document.getElementById('testframe').innerHTML = "FAIL: Your browser does not support the sandbox attribute on the iframe element.";
document.getElementById('testframe').style.color = "Red";
}
}