uptime-kuma based websites don't work

[nia_netbsd]

Uptime-kuma is a "fancy self-hosted monitoring tool". Seems to be an alternative to Xymon and similar tools.

It is open source: https://github.com/louislam/uptime-kuma

There is a demo instance: https://demo.kuma.pet/start-demo

It renders a blank page and gives the following console error:

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TypeError: this.relativeTimeFormatInstance.formatToParts is not a function

Apparently this feature is supported in Firefox since Firefox 70.

Naturally, disabling JavaScript makes it tell you to re-enable JavaScript. Unfortunate.

[Gemmaugr]

The Demo page renders for me, though it doesn't start.

Console Error:

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None of the “sha512” hashes in the integrity attribute match the content of the subresource.  
start-demo
ReferenceError: Vue is not defined[Learn More]  
start-demo:50:11

Vue is a site framework dependent on googles V8 javascript engine (like next/node/NW/react and Angular)

[adoxa]

Here's a Modify HTTP Response filter to supply it (for the current demo, it may break should the site update).

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[["demo.kuma.pet",["/index-.*js/",["Instance.formatToParts(c,s)","Instance.format(c,s).split(/(\\d+)/).map(p=>({type:\"literal\",value:p}))"]]]]