Debugging a Blank Page: How Two Innocuous Bugs in webrtc-rs and Tailscale Caused an iPad Failure
By
p2claw
Hot, fresh, and worth queueing round the block for.
Summary
A developer investigates why their p2claw app shows a blank page on iPad while working on other devices. After ruling out the iPad, WebKit, and Tailscale as individual culprits, they discover the root cause is two bugs working together: a hardcoded constant in webrtc-rs and a one-line design decision in Tailscale. Each bug is harmless on its own but causes failure when combined.
Key quotes
· 3 pulledLike in a good detective story, we came up with a bunch of suspects [the iPad, then WebKit, then Tailscale] and they all turned out to be innocent.
It turned out to be two bugs wearing a trenchcoat: a hardcoded constant in webrtc-rs, and a one-line design decision in Tailscale
In which many suspects are interrogated, and the case is closed on two bugs that are harmless apart and invisible together.
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