The "eternal war in cache" has reached browsers, with multiple cache-based side-channel attacks and countermeasures being suggested. A common approach for countermeasures is to disable or restrict JavaScript features deemed essential for carrying out atta... (more…)

We recently found a blog post about ThreatMetrix Inc. (a part of LexisNexis) scanning locally open ports for about 30,000 web sites, including eBay. The figure below shows that a browser tries to connect to ports commonly used for remote access to the com... (more…)

:dancing_women: Emulated float128 or double-double arithmetic. A floating point expansion with 31 accurate decimal digits. - munrocket/double.js... (more…)

One aspect of JavaScript development that many developers struggle with is dealing with optional values. What are the best strategies to… (more…)

Social media networks image sizes as JSON and JavaScript lists – Contains image sizes for all major social networks and messengers as of 2020 (Facebook, Twitter, Instagram, Tik Tok, Telegram, Whats... (more…)