The Native File System API is not supported in this browser yet, and Text Editor is running in legacy mode. In legacy mode, the file modified indicators are not shown. If you're running Chrome, you can enable the Native File System APIs by enabling the #native-file-system-api flag in chrome://flags.
Text Editor is a simple text editor similar to notepad that makes it easy to edit text files on your local file system. It shows how to easily use the new HTML5 Native File System APIs. To learn more about the Native File System APIs and how this demo was built, check out The native file system APIs article on Web Fundamentals, or see the source code on GitHub. Written by Pete LePage. Last Updated: 2019-12-03T19:22:11.304Z (v0.0.10)