Parsing JSON with NSJSONSerialization: Error 3840 - Data Corrupted?

OK, as always, checking the actual data instead of the string representation pays - thanks @Bavarious.

It turns out that the PHP script(s) in charge of creating the JSON were all "UTF8 with BOM", so PHP returned a BOM for every script involved.

Once I changed all the PHP files to "UTF8 without BOM" everything seems to be fine - need to test this on the MAC though.

Sorry to interrupt, keep up the good work.

(@Bavarious: If you'd like to write an answer, I'd be happy to upvote and accept it, as you pointed me to the solution).

Was able to parse the JSON now as expected. Making a mental note to always double-check the text file encoding.

    NSURL *theURL = [NSURL URLWithString:@"http://yourdataurl"];    NSMutableURLRequest *storeRequest = [NSMutableURLRequest requestWithURL:theURL cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10];    NSOperationQueue *queue = [[NSOperationQueue alloc] init];    [NSURLConnection sendAsynchronousRequest:storeRequest queue:queue                       completionHandler:^(NSURLResponse *response,     NSData *data, NSError *connectionError) {                               if (!connectionError) {                                   NSError *error;                                   NSString *dataStr = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];                                   NSData *theData = [dataStr dataUsingEncoding:NSUTF8StringEncoding];                                   NSDictionary *jsonResponse = [NSJSONSerialization JSONObjectWithData:theData options:0 error:&error];                                   if (!jsonResponse || error)                                   {                                       NSLog(@"Error");                                   }                                   else                                   {                                       // Everything is ok..                                   }                               }                           }];