Apple released new APIs for iOS 9, so now we can remove domain specific cookies stored for WKWebView with below code, but this will only work on devices with iOS version 9 or later:
Below is the Swift 3 version
let dataStore = WKWebsiteDataStore.default()
dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { (records) in
for record in records {
if record.displayName.contains("facebook") {
dataStore.removeData(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(), for: [record], completionHandler: {
print("Deleted: " + record.displayName);
})
}
}
}
And Swift 4:
let dataStore = WKWebsiteDataStore.default()
dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { records in
dataStore.removeData(
ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(),
for: records.filter { $0.displayName.contains("facebook") },
completionHandler: completion
)
}
Objective-C version –
WKWebsiteDataStore *dateStore = [WKWebsiteDataStore defaultDataStore];
[dateStore
fetchDataRecordsOfTypes:[WKWebsiteDataStore allWebsiteDataTypes]
completionHandler:^(NSArray<WKWebsiteDataRecord *> * __nonnull records) {
for (WKWebsiteDataRecord *record in records) {
if ( [record.displayName containsString:@"facebook"]) {
[[WKWebsiteDataStore defaultDataStore]
removeDataOfTypes:record.dataTypes
forDataRecords:@[record]
completionHandler:^{
NSLog(@"Cookies for %@ deleted successfully",record.displayName);
}
];
}
}
}
];
The above snippet will sure work for iOS 9 and later. Unfortunately, if we use WKWebView for iOS versions before iOS 9, we still have to stick to the traditional method and delete the whole cookies storage as below.
NSString *libraryPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *cookiesFolderPath = [libraryPath stringByAppendingString:@"/Cookies"];
NSError *errors;
[[NSFileManager defaultManager] removeItemAtPath:cookiesFolderPath error:&errors];