sharelist | Quick Share GoogleDrive OneDrive | Data Processing library

I have an app where I can share records with other users, everything works when I share a single record, my issue is when I share a record (parent record) which has children records referencing it, I can see the parent record in the Shared Database in the CloudKit Dashboard after the user accepts the share but I don't see any of the related child records.

Based on the WWDC videos and some other threads here at Stack Overflow, the child records are automatically shared when you share the parent record, but it's not what I'm seeing, again, I can see the parent record in the Shared Database but no child records.

Here is an overview of how the app is set up in the CloudKit Dashboard.

In the CloudKit Dashboard, I have a Lists and an Items record type, where the Lists record is the parent of one or many Items. In the Items schema, I have a Reference field type which keeps a reference to its parent list.

I'm currently working on a shopping application in which I want to share the user's list through a GET parameter string in the url. Now the problem is that the list may contain spaces or umlauts. I tried to avoid errors by using Javascript's function encodeURIComponent and that's where a bug in my code occurs.

For debugging I logged the generated url in the console. Here spaces and umlauts are correctly encoded. But when I connect the url and the parameter, which I haven't touched since logging, the list is in its raw format with all illegal characters. Did I miss something really obvious or am I just using the wrong functions?

Here's my code:

I have created a component in Angular that reads an XML file and uses a parser to display it to the HTML table that the component has. Within the parsing method, I want to change the functionality of the displayed data by modifying certain aspects when they are reached in the read XML data, but whenever I try to make a call to the method that will return the changed data I receive an error stating:

"core.js:15724 ERROR Error: Uncaught (in promise): TypeError: Cannot read property 'CurrencyConvChange' of undefined TypeError: Cannot read property 'CurrencyConvChange' of undefined".

This is the code for my main component's typescript file:

I'm am trying to set up an application that has an Angular front-end and a Maven/Spring Boot backend and have set up my first REST controller. My issue is that when I send a GET HTTP request to the backend from my Angular IDE it returns an error stating:

"Access to XMLHttpRequest at 'http://localhost:8080/api/getData' from origin 'http://localhost:4200' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource."

I'm confused as I have set up the "doFilter" to accept all requests from any origin so it shouldn't be throwing this error. My code follows:

My APIController: