NSURLSession不返回http / https的数据

Question

I need to get the data from the url it works for other url like udemy but returns nil for url="http://www.google.com/finance/converter?a=1&from=USD&to=INR" how to solve this issue. i have added app transport security too..

screen

let url = NSURL(string: "https://www.udemy.com/the-complete-ios-9-developer-course/")!

   let task = NSURLSession.sharedSession().dataTaskWithURL(url) { (data, response, error) -> Void in
    if let url_content = data{
        let webcontent = NSString(data: url_content, encoding: NSUTF8StringEncoding)
        print(webcontent)
    }
    }
    task.resume()

Answer 1

You can check the "error" variable to see if you have an error returned by the call. Most probably you have an error accessing that url.

Note that I tried the code and I could get data.

Answer 2

This is a text encoding problem. The webpage at http://www.google.com/finance/converter?a=1&from=USD&to=INR is not encoded with UTF-8 but with ISO-8859-1 .

In this case, you have to use NSISOLatin1StringEncoding instead of NSUTF8StringEncoding for NSString:

let webcontent = NSString(data: url_content, encoding: NSISOLatin1StringEncoding)