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Glossary

Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.

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MutationObserver(also: DOM Mutation Observer, Mutation Records API)
An HTML5 browser API that monitors and reports changes to the Document Object Model (DOM) structure of a web page in real time, including additions and removals of elements, attribute changes, and text modifications. For accessibility, MutationObserver is significant because it…

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