Getting img tag response headers from UIWebView

Question

I have a UIWebView with some static HTML. I want to get the response headers for the img from that html.

code:

let html = "<html><body><img src=\"\(imageUrl)\" alt=\"test\" width=\"70\" height=\"70\"></body></html>"
    webView.loadHTMLString(html, baseURL: nil)

extension ViewController: UIWebViewDelegate {
func webViewDidFinishLoad(_ webView: UIWebView) {
    if let html = webView.stringByEvaluatingJavaScript(from: "document.body.innerHTML") {
        print("html: \(html)")

    }

    print("finish load")

    let res = URLCache.shared.cachedResponse(for: webView.request!)
    print("res: \(res)")
    print("headers: \(res?.response)")
}
}

the cached response is always nil.

Is there a way to get the headers?

Thanks

score 0 · Answer 1 · edited May 23 '17 at 11:52

0

suggest to use NSURLConnection to make the request and extract the the headers field using NSURLResponse. can follow and read this

edited May 23 '17 at 11:52

Community

1
1

answered Nov 16 '16 at 10:13

jokerday

136
1
10

This wont work for me. I'm using a external service, and for it to work i need to call this url from a html. – ilan Nov 16 '16 at 10:15
have you tried this before - http://stackoverflow.com/questions/22325818/get-uiwebview-response-header ? – jokerday Nov 16 '16 at 10:18
yes, look at the code in my question... its exactly that. – ilan Nov 16 '16 at 10:23
you got anything for your HTML content? – jokerday Nov 16 '16 at 10:26
Yes, I get the html I loaded – ilan Nov 16 '16 at 10:27
how about this? http://stackoverflow.com/questions/34880416/get-http-response-header-on-uiwebview – jokerday Nov 16 '16 at 10:30

Getting img tag response headers from UIWebView

1 Answers1