<script async> in <head>

The "official" install. wire.js loaded asynchronously from <head>. On light pages this reproduces the v1 race condition — async load can finish after window.load fires.

Each side runs the same scenario in its own iframe. The iframes load independently, so you can see how each pixel version behaves under identical conditions.

V1 · current pixel

Verdict

Initialising…

window.load

—

wire.js

—

pixel

—

Event timeline

No events recorded yet…

Script tag for this scenario

<script type="text/javascript" async src="https://staging-api.wire.spbx.app/wire.js?account_id=79&property_id=6a2111320c2dee2dc5548935"></script>

V2 · proposed fix