The Table of Contents (ToC) is auto-generated based on the content of
heading elements on the page. At the same time, anchor links are
auto-generated and added to each heading element. Note that the Material
Icons used for the anchor icon make use of ligatures, which means that
the icons are specified by using their textual name as text content of
the icon element. As a result, the name of the icon is included in the
parent element's `textContent`.
Previously, the `TocService` used to strip off these anchor elements
when generating the content of ToC items, but not when generating the
content of their tooltips. Thus, tooltips for ToC items would
confusingly include a `link` suffix (`link` is the textual name of the
icon used in heading anchor links).
This commit fixes this by deriving the tooltip content from the
transformed text content (which already has anchor links stripped off),
instead of from the original heading content.
PR Close#32418
Want to file a bug, contribute some code, or improve documentation? Excellent! Read up on our
guidelines for contributing and then check out one of our issues in the hotlist: community-help.