UIWebview loadRequest not working only in iPhone X - ios

I am trying to load a URL using webView in Objective C. I tried "https://www.tidecleaners.com/cincinati-pricing" and it works fine for all devices. But not working only in iPhone X.
Here its my code,
NSString *fullURL = #"https://www.tidecleaners.com/cincinati-pricing";
NSURL *url = [NSURL URLWithString:fullURL];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
self.WebView_O.delegate = self;
[self.WebView_O loadRequest:requestObj];

According to the Apple docs, error -1007 means NSURLErrorHTTPTooManyRedirects, i.e. the HTTP connection failed due to too many redirects.
Maybe the WebView implementation of the iOS version on your iPhone X is less tolerant to redirects than on older devices. However, this seems to be a server issue, and you probably won't be able to do much about it on the client side.
However, to get more information about the issue, you can enable a more verbose network log:
Open your scheme in Xcode.
Select Runon the left, and the Arguments tab on the right.
Add CFNETWORK_DIAGNOSTICS to the environment variables, and add 1, 2, or 3 as a value (depending on the verbosity you want).
Hopefully, the logs will then tell you a bit more about the error.

Related

NSURLConnection randomly fails until device reboot

I have been struggling with an issue where NSURLConnection calls instantly fail. The device needs to be rebooted entirely or Flight Mode needs to be toggled on/off to resolve the problem. Restarting the app (swipe up) alone does not help.
Some facts:
-All URLs are HTTPS, TLS 1.2 compatible with Forward Secrecy. There are no issues with ATS and iOS 9. The error has been present since iOS 7 and remains on 9.2.
-No third party frameworks are used by the app. I use only native NSURLConnection calls that always work, except for when this odd situation occurs.
-No infrastructure/network issues - other devices on same networks (same WiFi for instance) work in the same app at the same time. Going to/from 3G/Wifi makes no difference.
-I always implement willCacheResponse to return nil.
-The service is hosted on AWS Elastic Beanstalk, so some suggested that it might be a DNS caching issue in case of IP address changes - this seems unlikely to me and should trigger multiple errors at once on different devices, which I have never seen.
-The method called is didFailWithError, instantaneously, as if there were no Internet connection on the device at all - all other apps work, however.
-The website that hosts the API used by the app can be browsed with no problems at all times. The website actually makes the same requests to fetch data.
The error code returned is -1003, kCFURLErrorCannotFindHost. I've been following a thread on Git dealing with the same issue to no avail. https://github.com/AFNetworking/AFNetworking/issues/967
I tried using NSURLRequestReloadIgnoringCacheData for all my requests, but that did not help.
With this information, will anyone care to venture a guess what I might be doing wrong? I added the bounty because I have no idea how to approach this problem - especially because it's so inconsistent. And it is definitely not a legitimate error (that is, that the domain could not be found), as the service is operating fine while this happens on random clients.
I create my request with a static method that looks like this. It's been stripped of some non-public info, but basically it just performs a POST request with JSON data. [Controller getSQLHost] just returns a URL - the base domain.
+(NSURLConnection*)initiatePOSTwithJSONDictionary:(NSDictionary*)dictionary toURL:(NSString*)urllocation withDelegate:delegate {
NSMutableDictionary *connectionDictionary = [[NSMutableDictionary alloc] init];
if (dictionary) {
[connectionDictionary setObject:dictionary forKey:#"input"];
}
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:connectionDictionary options:kNilOptions error:nil];
NSURL *url = [NSURL URLWithString:[[Controller getSQLHost] stringByAppendingString:urllocation]];
NSString *postLength = [NSString stringWithFormat:#"%i", (int)[jsonData length]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:jsonData];
return [[NSURLConnection alloc] initWithRequest:request delegate:delegate];
}
Does you delegate implement connectionShouldUseCredentialStorage ? (or respond with YES)
I think the device's keychain is used when this method returns yes which may explain the persisting failure beyond the life time of the running application and why rebooting or otherwise resetting network connectivity "fixes" it. If an authentication failure has been recognized once, it may linger in the key chain for a little while which would then respond immediately without actually going to the server.
What would cause the authentication to register as a failure in the keychain in the first place may depend on a variety of factors. It could be as simple as a typo in the saved password or more convoluted such as some certificate expiration preventing the SSL layer from establishing a secure link.
You're creating NSURLConnections on the current runloop. How many are active at any one time? Have you considered using an NSOperationQueue so that you don't get bitten by load bugs?
Is your delegate thread-safe? If not, that could explain the sporadic-ness of the bug.
You say you don't see the problem often, but others do. Can you borrow their devices and maybe even them and their usage patterns and thus get to see the problem more often?

AFNetworking lib not loading data from cache in offline mode

I am developing a content reading app in which some data is displayed in a tale view and respective detail views.
Now I have already completed the app but there is a small bug.
I am using AFNetworking library for online data load and offline caching.
I have defined caching policy as described by following code.
Reachability *reach = [Reachability reachabilityWithHostname:#"google.com"];
if ([reach isReachable])
{
// Reachable
request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:60.0];
}
else
{
request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataDontLoad
timeoutInterval:60.0];
}
But I am having a small problem that if I load some data online and then turn off the internet connection and close the app.
And afterwords if I restart the app again in offline mode, the cached data should load but it is not happening.
I also have tried changing the caching policies as defined in the following link:
http://blog.originate.com/blog/2014/02/20/afimagecache-vs-nsurlcache/
app deployment target : iOS 6.0
devices : universal
xcode version : 6.1
AFNetworking lib version : 2.0
Any suggestion is appreciated, thanks in advanced

AFNetworking lib not loading data in offline mode in iOS

I am developing a content reading app in which some data is displayed in a tale view and respective detail views.
I have already completed the app but there is a small bug.
I am using AFNetworking library for online data load and offline caching.
I have defined caching policy as described by following code:
Reachability *reach = [Reachability reachabilityWithHostname:#"google.com"];
if ([reach isReachable]) {
// Reachable
request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
timeoutInterval:60.0];
}
else{
request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestReturnCacheDataDontLoad
timeoutInterval:60.0];
}
But, I am having a small problem that if I load some data online and then turn off the internet connection and close the app, and afterwords if I restart the app again in offline mode, the cached data should load but it is not happening.
I also have tried changing the caching policies as defined in this link.
app deployment target : iOS 6.0
devices : universal
xcode version : 6.1
AFNetworking lib version : 2.0
Replace all of the code you posted and just set the request cache policy to NSURLRequestUseProtocolCachePolicy.
As it stands, you're currently making a synchronous reachability query on every request. Either that or worse—it's returning immediately, but always returning before a real reachability state can be determined.

NSURLRequest on iOS vs OS X

Is there any difference between NSURLRequest class on Mac OS and iOS?
Apparently there is one.
Here how the class description looks on Mac OS:
<NSURLRequest: 0x60000000f290> { URL: http://www.google.com/ }
And here how it looks on iOS:
<NSURLRequest http://www.google.com/>
As it appears there is a big difference for my project as it work perfectly on iOS and connection fails for Mac OS version.
Does anyone know how to make Mac OS app init the NSURLRequest class object exactly the way it does for iOS?
UPD 1
Same code for initialisation of the object for both platforms
NSURLRequest* aRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.google.com/"]];
I tried same to use NSURLRequest in both AFNetworking and NSURLConnection getting same result - successful connection on iOS and 403 error for Mac OS
successful connection on iOS and 403 error for Mac OS
403 is HTTP's Forbidden response. The fact that you're getting a 403 means that a) your request is making a proper HTTP connection, but b) the server doesn't want to talk to you for some reason. A good strategy for diagnosing the issue is to use a proxy like Charles to look at the successful and unsuccessful requests and note the differences. The user agent parameter is one thing that's likely to differ between the two platforms, but you'll probably find other differences as well. Once you know what's different between the two requests, you'll have a better idea of what you need to change to make the failing requests work.

Not able to load facebook fan page wall in UIWebview

In my app, I am trying to display Facebook fan page wall (eg.https://m.facebook.com/DonaldDuck) in the UIWebView. But white screen gets displayed and getting error as:
Error Domain=NSURLErrorDomain Code=-1202 "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “m.facebook.com” which could put your confidential information at risk."
I have found the same issue as stackoverflow1.
I have tried this solution.
Also tried below links to display Facebook fan page wall.
http://m.facebook.com/DonaldDuck?v=wall
http://m.facebook.com/DonaldDuck?v=feed
Code:
NSURL *url = [NSURL URLWithString:FACEBOOK_LINK];
NSMutableURLRequest *requestObj = [NSMutableURLRequest requestWithURL:url];
[requestObj setValue:#" Safari/537.1" forHTTPHeaderField:#"User_Agent"]; // Line 1
[fbWebView setDelegate:self];
[fbWebView loadRequest:requestObj];
Above Line 1, If I use then I am able to see wall page.But this is private api and i have to submit this app on apple store. So, i guess this will not work. :(
Any idea how to resolve this issue on iPad? (It works with iPhone UIWebView)

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