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2026-04-14 | 📧 Share Buttons Phase Two 🔗

🚀 Overview

📣 Yesterday we shipped Phase One of the share buttons: Bluesky, Mastodon, Twitter, and SMS. 🎉 Today we expanded the sharing toolkit with three new options and simplified the existing ones.

📧 New Sharing Options

📧 Email

✉️ The Email button uses the classic mailto URI scheme. 🔗 When clicked, it opens the reader’s default mail client with the page title pre-filled as the subject line and the full share text (title plus URL) in the body. 🧩 No JavaScript needed, just a plain anchor tag.

🔗 Copy Link

📋 The Copy Link button uses the Clipboard API to copy the page URL directly to the clipboard. ✅ After a successful copy, the button briefly changes to show a checkmark with the word Copied, giving the reader immediate visual feedback that it worked. 🛡️ If the Clipboard API is unavailable (some older browsers restrict it), a fallback prompt appears so the reader can still copy the link manually.

📲 Native Share

📱 The Native Share button leverages the Web Share API, which is supported on most mobile browsers and some desktop browsers. 🔍 The button is hidden by default and only appears when the browser supports the API, detected at runtime via feature checking. 📤 When tapped, it opens the device’s native share sheet, letting readers share to any app they have installed, from messaging apps to note-taking tools and beyond.

🐘 Mastodon Simplification

🏠 The Mastodon button was previously interactive, prompting the reader for their Mastodon instance and saving it to localStorage. 🔧 We simplified this by hardcoding the button to mastodon.social, the largest and most popular instance. 🧹 This removed all the instance handling JavaScript: the validation, normalization, localStorage management, and the shift-click-to-change flow. 🔗 Now Mastodon is just a plain link, like Bluesky.

🐦 Twitter Unification

🔄 Twitter previously used separate text and url parameters in its intent URL. 📝 We unified it to use the same combined share text as every other platform: the title followed by two blank lines and the URL. 🤝 This means every platform now shares exactly the same message, which is simpler to reason about and maintain.

🏗️ Architecture

🧱 The three-file component structure remains the same. 📦 The TSX file renders all buttons as server-side markup. 🎨 The SCSS file handles styling, including the copy-success animation and hiding the native share button by default. ⚙️ The inline TypeScript file handles client-side behavior: clipboard writes and Web Share API calls.

🔑 A key design principle here is progressive enhancement. 📲 The Native Share button simply does not exist in the DOM visually until JavaScript confirms the browser supports it. 📋 The Copy Link button works via the Clipboard API but falls back to a prompt dialog if that is not available. 📧 Email and all the link-based buttons work with zero JavaScript at all.

🧪 Testing Approach

🖥️ We validated the build compiles successfully and inspected the rendered output in a browser. 📸 The screenshot confirms all visible buttons render correctly in a row. 📲 The Native Share button is correctly invisible on desktop, since desktop browsers generally do not support the Web Share API.

📋 Spec Updates

📝 The share buttons spec now reflects the completed Phase Two. 🐘 The Mastodon section documents the hardcoded instance. 🐦 The Twitter row notes the unified text parameter. 🔒 The security section documents the Clipboard API fallback and the feature-detected Native Share button.

📚 Book Recommendations

📖 Similar

• Designing Interfaces by Jenifer Tidwell is relevant because it covers interaction design patterns like progressive disclosure and contextual actions, which directly apply to how share buttons reveal themselves based on device capability.
• Don’t Make Me Think by Steve Krug is relevant because the simplification of Mastodon from an interactive prompt to a one-click link embodies its core principle that every extra step loses users.

↔️ Contrasting

• The Design of Everyday Things by Don Norman offers a contrasting perspective by arguing that affordances should communicate all possibilities to the user, whereas our progressive enhancement approach deliberately hides options that the device cannot support.

🔗 Related

• Progressive Enhancement by Aaron Gustafson explores the exact philosophy behind showing the Native Share button only when the Web Share API is available, building experiences that work for everyone and enhance for those with capable browsers.