A KeyedDecodingContainer extension that adds percent encoding to Unicode URL during Codable decoding process.

UnicodeURLDecodingEnabler.swift

import Foundation

extension KeyedDecodingContainer {

    func decode(_ type: URL.Type, forKey key: Key) throws -> URL {
        do {
            return try URL(from: superDecoder())
        } catch (let error) {
            guard
                let urlString = try? decode(String.self, forKey: key),
                let encodedURLString = urlString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed),
                let encodedURL = URL(string: encodedURLString) else {
                    throw error
            }
            return encodedURL
        }
    }
}