Speculative parsing - MDN Web Docs Glossary: Definitions of Web-related terms | MDN

Speculative parsing - MDN Web Docs Glossary: Definitions of Web-related terms | MDN

Traditionally in browsers the HTML parser ran on the main thread and was blocked after a </script...概要を表示 Traditionally in browsers the HTML parser ran on the main thread and was blocked after a </script> tag until the script has been retrieved from the network and executed. Some HTML parser, such as Firefox since Firefox 4, support speculative parsing off of the main thread. It parses ahead while scripts are being downloaded and executed. The HTML parser starts speculative loads for scripts, style sh