UTF-16 truncation?

People say that emoji is the technology that finally gets Latin-script users to really care about text encoding.

Tag

Text encoding / Mojibake

Date Published

17 May 2025

Vendor

Google

Product

YouTube

From

English (United States)

�

GitHub
9 hours ago

Even the best design systems can miss critical accessibility details. But what if you could catch them earlier? �… Read more

GitHub
9 hours ago

Even the best design systems can miss critical accessibility details. But what if you could catch them earlier? 🤔

This guide shows how to use design system annotations to proactively build accessibility in by:
🧩 Leveraging reusable a11y annotations with your components.
📂 Documenting details that don't show up in Figma assets or code.
🚀 Empowering your teams to build accessibly by default.

Start bridging the accessibility gap and creating better experiences for everyone. ✅

Speculation: YouTube stored the content of posts in UTF-16, and truncated the text based on UTF-16 charactcers. Emoji, and all other characters outside of the Basic Multilingual Plane, are encoded as a surrogate pair that are invalid when isolated. In case when the text is truncated in the middle of an emoji, the text becomes invalid and resulting in a �.

External links

Post from @GitHub