[bug] Cannot download folders using advanced `dsidl:src` format

[Merith-TK]

{ "dsidl:src" : "https://cdn.merith.xyz/dsi/_test_dir_/dsidl.json" }

{"dsidl":1,"script":{"root-file.txt":{"url":"https://cdn.merith.xyz/dsi/_test_dir_/root-file.txt"},"subfolder/subfile.txt":{"url":"https://cdn.merith.xyz/dsi/_test_dir_/subfolder/subfile.txt"}}}

errors downloading subfolder/subfile.txt