Check props.params for defined by default

[annaf-dev]

Is your feature request related to a problem? Please describe.

The initial problem occurs when I changed my JSS app to fit the Sitecore-first workflow. After that I created a Rendering Parameter in Sitecore and wanted to use it in the corresponding JSS component. It led to the error stating that the props.params are undefined. I asked in Slack and @kamsar pointed me out that the Layout Service won't return my params until I set a value. That worked but initially there is no value wanted.

Describe the solution you'd like

I would like to have props.params checked for defined by default, so the JSS component works even if there is no value set.

Additional information

I use JSS version 11.0.2 (with React) and a Sitecore 9.0.1 instance.

[sc-dawidrutkowski]

Starting from JSS 13 the params object will be present in the JSON response even if rendering doesn't have parameters assigned yet: