httpClient url with the spaces

[zuibaf]

    import httpclient
    import uri
    import strutils
    
    
    #[
        When I insert url: "http://file.allitebooks.com/20150510/Sams Teach 
Yourself C++ in 24 Hours, 5th Edition.pdf"
        on the navigator firefox or chrome, this a showed:
        
        
http://file.allitebooks.com/20150510/Sams%20Teach%20Yourself%20C++%20in%2024%20Hours,%205th%20Edition.pdf
        
        But, when I try download of file of url:
            http://file.allitebooks.com/20150510/Sams Teach Yourself C++ in 24 
Hours, 5th Edition.pdf,
            
            using getContent of httpClient, the error is displayed:
                Error: unhandled exception: 400 Bad Request [HttpRequestError]
            
            I try to using encodeUrl, this error is displayed:
                
                Error: unhandled exception: No uri scheme supplied. [ValueError]
            
            This question is:
                How to encode url similar to what is displayed in browser why 
using encode is giving error.
    And how to pass 'scheme' to 'httpClient' ???
    
    ]#
    
    var site_url = "http://file.allitebooks.com/20150510/Sams Teach Yourself 
C++ in 24 Hours, 5th Edition.pdf"
    
    var http = newHttpClient()
    
    #[
     This error => unhandled exception: 400 Bad Request [HttpRequestError]
     How to escape space characters, among others.
    Because using encode is not working.
    In the browser, when you pass the url with spaces, it escapes only white 
spaces. I thought encodeUrl did something similar.
    var http_content = http.getContent(site_url)
    ]#
    
    var http2 = newHttpClient()
    
    # This error is: No uri scheme supplied. [ValueError]
    # How to pass 'scheme' for 'httpClient' before of call getContent???
    var http_content_2 = http.getContent(encodeUrl(site_url))
    
    
    Run