layer 作者： kim kleinert

This browser extension focusses on surfacing three different entities from a websites source code, which by default are not part of the pages visible interface.
1. Insert and Inspect the head of an html document. Other than the body, this part is hidden by default. The head contains a websites meta information, such as title and language but also is the place where stylesheets, scripts and libraries are linked. Seeing the head of a website can give us an indication about its dependencies, addressees and scope.
2. Insert and Inspect empty DOM elements. These are inside of the Websites HTML file but dont have any content. Some HTML elements are empty by default, others are misused as placeholders or to create layouts.
3. Insert and read comments from a websites CSS, HTML and Javascript code files.
3.1. Inject a notification for source code comments into a random part of the open website
3.2. Open the notification to read the comments
3.3. Move the comments to the background of a page to continue browsing