Google Explains Reason For Sending SharedArrayBuffer E-Mail
Website SEO agencies and businesses recently received a message from the Google Search Console about SharedArrayBuffer (SAB) issues. The search engine company’s Search Central clarified the confusing message to website SEOs and informed them that they have updated their guide to enable cross-origin isolation.
However, there are times when splitting up the work is just not enough. That’s where the web workers come in; they can share data from the same chunk of memory.
At times, ArrayBuffers and TypedArrays receive a large amount of data from messages, which in turn causes large memory cost as data gets cloned.
SABs began to have issues after the discovery of the Spectre and Meltdown Vulnerabilities, which affect all Computer Processing Units (CPUs), making them vulnerable to attackers that can read the information in the memory. The attacks affect all computer devices and even Internet of Things devices. As a result, Chrome suspended the use of SABs, though it re-allowed them after solving the problem.
The purpose of the e-mail was to let people know how Chrome will be handling SABs in the future. They also did this to get SEOs and publishers on board with the process, thereby promoting the safety of their sites and site visitors.
Chrome 91 will be launched with a new restriction that gives stronger protection from the Spectre and Meltdown vulnerabilities in late May 2021. This means that everyone should set security policies on resources and lock down what was allowed based on safety policies against Spectre vulnerabilities from Chrome and Firefox. This is good news for site visitors but could be a problem for webmasters who use SAB objects without cross-origin isolation.
According to Google, website SEOs and owners must do two things: identify SAB use on their site by either using the Reporting API or Chrome DevTools and fix or remove the functionality.
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