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Rob Helmer's blog posts matching the tag: webdev
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8/16/2026 · 5 min read
Add Cloudflare Turnstile to Astro Forms and Workers
How I added Cloudflare Turnstile to an Astro newsletter form and verified tokens in a Worker: keys, CI, deploy order, and DevTools noise.
6/7/2025 · 3 min read
Track Custom Events Without Cookies or a Tag Manager
Track scroll depth, clicks, time on page, and custom events without cookies or a tag manager: one open-source drop-in script on top of Umami, with no PII.
1/10/2025 · 4 min read
Cross-Browser Extensions Using React, Astro, Svelte, +more
Step-by-step guide to creating a web extension in React, Astro, Svelte, and Angular for Firefox, Chrome, Edge, Brave, Vivaldi, and Safari.
12/8/2012 · 3 min read
How to capture and replay HTTP POST requests using tcpdump
A tutorial on how to capture and replay HTTP POST requests using tcpdump, a case study for testing changes in a Mozilla crash-stats service.
4/18/2013 · 1 min read
Etherpad 2013 Meetup Videos now available on Youtube
A post about migrating Mozilla's Etherpad install from the original Etherpad to Etherpad Lite. It includes a YouTube video series from the 2013 Etherpad meetup.
1/10/2025 · 3 min read
Observability in Godot Web games with Highlight.io
Learn how to enable observability for Godot Web games for errors and session record/replay with highlight.io to see how people play your game
6/19/2025 · 5 min read
Analytics Without a Cookie Banner: An Independent Guide
Analytics without a cookie banner, from an ex-Mozilla privacy engineer who sells no analytics tool: what cookieless tools measure and where GDPR stays murky.