MDN Web Docs
Web documentation on tel URI syntax
Episodes
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#5942: Service Workers: The Proxy That Never SleepsA JavaScript file with no tab, no DOM, and the power to intercept every request your site makes — and why refreshing never updates it. -
#4641: Mozilla's Hidden Projects: Beyond the BrowserMozilla is more than just Firefox. Discover Common Voice, Monitor, Thunderbird, and Rust — the public infrastructure projects shaping the open web. -
#4179: Why Your Phone Number Link Is Costing You CustomersThat non-clickable phone number on your site is quietly bleeding leads. Here’s the five-minute fix. -
#2582: What Your Browser Does to Mic Audio Before It Reaches Your ServergetUserMedia returns audio, but not raw audio. Here's what browsers actually do to your mic feed before it hits your server. -
#2514: WebSockets vs SSE: Choosing the Right Real-Time ConnectionWebSockets vs Server-Sent Events: when to use full-duplex vs one-way streaming, and why most developers pick wrong. -
#2508: Why CORS Doesn't Protect Your ServerWhy browsers block cross-origin requests, how CORS actually works, and the common pitfalls that trip up developers.