Nsurlerrordomain with Code=-1100

can't get image from URL? (NSURLErrorDomain error -1100)

You are providing a wrong domain name.

Solution

Delete all the plist settings you have added manually, add this in plist----

 <key>NSAppTransportSecurity</key>
    <dict>
        <key>NSExceptionDomains</key>
        <dict>
            <key>i.groupme.com</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSExceptionAllowsInsecureHTTPLoads</key>
                <true/>
                <key>NSExceptionRequiresForwardSecrecy</key>
                <true/>
                <key>NSExceptionMinimumTLSVersion</key>
                <string>TLSv1.2</string>
                <key>NSThirdPartyExceptionAllowsInsecureHTTPLoads</key>
                <false/>
                <key>NSThirdPartyExceptionRequiresForwardSecrecy</key>
                <true/>
                <key>NSThirdPartyExceptionMinimumTLSVersion</key>
                <string>TLSv1.2</string>
                <key>NSRequiresCertificateTransparency</key>
                <false/>
            </dict>
        </dict>
    </dict>

Plist Screenshot

Code to download image

 NSURL *url = [[NSURL alloc] initWithString:@"https://i.groupme.com/638x640.jpeg.d4f31c747b534baca03d12db5a2b6193"];
 NSData *data = [[NSData alloc] initWithContentsOfURL:url];
 UIImage *result = [[UIImage alloc] initWithData:data];

Image download Success screenshot

NSURLConnection error 1100 while running ionic app on iOS

Had the same issue and after quite a bit struggle and R&D this is what worked for me.

Seems like relative path is taken by IOS so in your src -> index.html please change this
base href="/"
to
base href="./" (note dot at the beginning of the /)

this will load all the relevant js files (cordova.js, polyfill.js etc.)

the 1100 errors are files not being found due to absolute path.

NSURLErrorDomain error codes description

The NSURLErrorDomain error codes are listed here https://developer.apple.com/documentation/foundation/1508628-url_loading_system_error_codes

However, 400 is just the http status code (http://www.w3.org/Protocols/HTTP/HTRESP.html) being returned which means you've got something wrong with your request.

Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit

All error codes are on "CFNetwork Errors Codes References" on the documentation (link)

A small extraction for CFURL and CFURLConnection Errors:

  kCFURLErrorUnknown   = -998,
  kCFURLErrorCancelled = -999,
  kCFURLErrorBadURL    = -1000,
  kCFURLErrorTimedOut  = -1001,
  kCFURLErrorUnsupportedURL = -1002,
  kCFURLErrorCannotFindHost = -1003,
  kCFURLErrorCannotConnectToHost    = -1004,
  kCFURLErrorNetworkConnectionLost  = -1005,
  kCFURLErrorDNSLookupFailed        = -1006,
  kCFURLErrorHTTPTooManyRedirects   = -1007,
  kCFURLErrorResourceUnavailable    = -1008,
  kCFURLErrorNotConnectedToInternet = -1009,
  kCFURLErrorRedirectToNonExistentLocation = -1010,
  kCFURLErrorBadServerResponse             = -1011,
  kCFURLErrorUserCancelledAuthentication   = -1012,
  kCFURLErrorUserAuthenticationRequired    = -1013,
  kCFURLErrorZeroByteResource        = -1014,
  kCFURLErrorCannotDecodeRawData     = -1015,
  kCFURLErrorCannotDecodeContentData = -1016,
  kCFURLErrorCannotParseResponse     = -1017,
  kCFURLErrorInternationalRoamingOff = -1018,
  kCFURLErrorCallIsActive               = -1019,
  kCFURLErrorDataNotAllowed             = -1020,
  kCFURLErrorRequestBodyStreamExhausted = -1021,
  kCFURLErrorFileDoesNotExist           = -1100,
  kCFURLErrorFileIsDirectory            = -1101,
  kCFURLErrorNoPermissionsToReadFile    = -1102,
  kCFURLErrorDataLengthExceedsMaximum   = -1103,

Captured Video URL not Found

The best way to do is:

let outputFileURL = NSURL(fileURLWithPath: NSTemporaryDirectory()).URLByAppendingPathComponent("output.mov")

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