Bug 1505844 Comment 20 Edit History

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The fetch in question happens in 3rd party code:

https://www.dianomi.com/js/lazyload.10.20.1.min.js:

```
! function(t) {
    a && s ? fetch("data:image/webp;base64,UklGRh4AAABXRUJQVlA4TBEAAAAvAAAAAAfQ//73v/+BiOh/AAA=").then(function(e) {
        return e && void 0 !== e.blob ? e.blob() : t(!1)
    }).then(function(e) {
        return t(!!window.createImageBitmap(e))
    }) : t(!1)
}
```

This seems like some kind of marketing/advertising script?

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