[BUG] `BpmnElementsRegistry.getElementsByIds` generates error when the HTML BPMN container has no id

I’ve started working with bpmn-vsualization on svelte, and then to implement it I didn’t need to register to an element via ID element query selector. But it leads to some unexpected behaviors I’ve recently fixed by putting an id to the container. For example htmlElement for all element keeps getting null because the query selector build starts with “# > …” and is not valid.

there’s no problem if there’s already stated somewhere around docs and I missed, but maybe to better debug this kind of error there could be an warning “No id detected on root html element”

I’ll later get an repro here, but right now I’m just reporting to get it out of my mind

Thanks for all your efforts on this awesome library

[outerlook]

Hi @csouchet !

Just made a quick repro (using rxjs for easier copy pastes) https://codesandbox.io/s/bpmn-visualization-svelte-id-bug-mvp1it

Remove attribute id from element then it will crash

Later I can do another repro without all the bloats if it is not useful right now.

And I would be happy to help as I can on the svelte examples

[tbouffard]

ℹ️ The fix is now available as part of version 0.27.1