Deploy the Web IDE UI5 application to ABAP repository, I use HCP trial and internal SD4 system as example.
There is no option in the dropdown list for you to select a ABAP system.
Now we introduce the HCP cloud connector to solve this CSRF (Cross-site request forgery):
SAP Cloud Platform Documentation – Installation on Microsoft Windows OS
In the download page, please select the correct version for your OS, I chose the 4th one.
You can read and follow the steps from initial configuration https://help.hana.ondemand.com/help/frameset.htm?db9170a7d97610148537d5a84bf79ba2.html after your installation
You will receive 2 green lights if you configure correctly
Now back to your HCP, you will find status change to ‘Connected’ for Cloud Connectors. For the exposed backend system will be told in the following.
The system mapping should be done like below and the resources should also be maintained , for the explanation of the URL Path , you can refer to this help link.
Please remember to test the connection to make sure reachable
Create destination in the HCP as a final step
Now the SD4 system is available in the dropdown list when you click deploy in the Web IDE
You will receive the deploy info. In the console after you confirm