More than 384,000 websites are linking to a site that was caught last week performing a supply chain attack that redirected visitors to malicious sites, researchers said. For years, the JavaScript code, hosted at polyfill[.]com, was a legitimate open source project that allowed older browsers to handle advanced functions that werent natively supported. By linking to cdn.polyfill[.]io, websites could ensure that devices using legacy browsers could render content in newer formats. The free serv
