Web-component Block Preview doesn't render straight away (v14) Umbraco #help-with-umbraco

Web-component Block Preview doesn't render straigh...

Andrew McKaskill

01/30/2025, 10:27 AM

Has anyone experienced this? I have made a web-component to act as a block preview for blocks in my v14 block list. I've got it registered correctly using the

umbraco-package.json

, but when the edit page loads the previews don't load automatically. They only load when you: - add a new block of that type - drag existing blocks of that type around in the list Can anyone point me to what I'm missing? https://cdn.discordapp.com/attachments/1334469990920884285/1334469991692763137/block-preview.gif?ex=679ca587&is=679b5407&hm=c2f11eb542c2cc7e3c90cf185e44179257804d5993709d54f6576f8d603a84ae&

Andrew McKaskill

01/30/2025, 11:14 AM

@rickbutterfield did you ever run into this problem while developing your BlockPreview package?

rickbutterfield

01/30/2025, 11:39 AM

I do remember there being some sort of race condition early on in v14, where the filter method that checks for anything on that extension point doesn't always load correctly

rickbutterfield

01/30/2025, 11:40 AM

What version of 14 are you on?

rickbutterfield

01/30/2025, 11:45 AM

@Andrew McKaskill I've just remembered, I fixed this for Block List in v15! https://github.com/umbraco/Umbraco-CMS/commit/3e7d6341e9c6c7ca71dc9b3e8ddaf89f394d9576

rickbutterfield

01/30/2025, 11:45 AM

It didn't get backported to v14

Andrew McKaskill

01/30/2025, 11:45 AM

Ah ha! Yeah, I thought it looked like a race condition.

Andrew McKaskill

01/30/2025, 11:46 AM

On 14.3.1 at the moment locally.

rickbutterfield

01/30/2025, 1:54 PM

Looks like you'd have to upgrade to v15 or be okay with it sometimes working, sometimes not unfortunately

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