Browser performance issue in HierarchyWidget

[Pooya-Oladazimi]

Every time I open the HierarchyWidget, my Browser starts to lag, and the response is slow. It looks like something is stuck in the loop or some API call got stuck.

Does it happen to you also? @jusa3 @VincentKneip

Browser: Firefox v131.0.2
OS: Ubuntu 22.04

I noticed this in the console:

[rombaum]

Vincent and I spotted a loop in this terminology. In the past the hierarchy was not loading. He interrupted the loop before the first cycle but he added this information to the log. But he could also give you more details. ;)

[VincentKneip]

The lag could have multiple reasons:

• The stories of HierarchyWidget are much bigger than stories of other widgets in general
• The SagePub story illustrates how the widget deals with cyclic trees, throwing the warning on the console
• OntoPortal requires providing an api key to use their API. As no key is provided in the respective story by default, the query results in an Axios error

[jusa3]

On my machine, the response of the SagePubHierarchy story and other hierarchy stories is a little slower than other widgets, but not that slow.