blocks|key|2624134|text|现在看来，NSHTTPCookieStorage在iOS+8.2中被用来根据需要正确清除cookies。在打开基于WKWebView的登录之前，我已经发布了一个运行此代码的应用程序：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2624135|NSHTTPCookieStorage+*storage+=+[NSHTTPCookieStorage+sharedHTTPCookieStorage];
for+(NSHTTPCookie+*cookie+in+[storage+cookies])
{
++++[storage+deleteCookie:cookie];
}|code-block|syntax|javascript|2624136|在iOS+8.2之前，该网站将使用保存的cookie自动登录，现在它正确地要求用户重新登录。所有这一切都发生了，我没有发布一个更新到应用程序。:)|2624137|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

It seems like NSHTTPCookieStorage is now being used in iOS 8.2 to correctly clear cookies, as required. I had shipped an app which would run this code prior to opening a WKWebView based login:

<pre><code>NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
for (NSHTTPCookie *cookie in [storage cookies])
{
 [storage deleteCookie:cookie];
}
</code></pre>

Where earlier than iOS 8.2 the website would auto-login using the saved cookies, it now correctly asks the user to re-login. All this happened without me shipping an update to the app. :)

blocks|key|2676742|text|除了清除共享cookie存储中的cookie之外，我还尝试清除缓存(NSURLCache)，丢弃WKWebView并创建一个新的WKProcessPool|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2676743|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In addition to clearing cookies in the shared cookie storage, i'd try clearing the cache (NSURLCache) and discard the WKWebView and create a new one with a new WKProcessPool

blocks|key|2624163|text|苹果为iOS+9发布了新的API，因此现在我们可以用下面的代码删除WKWebView存储的特定域cookie。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2624164|迅速4/5版本：|2624165|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
++)
}|code-block|syntax|javascript|2624166|以下是Swift+3版本|2624167|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:+"+%2B+record.displayName);
++++++++++++++++})
++++++++++++}
++++++++}
++++}|2624168|目标-C版-|2624169|WKWebsiteDataStore+*dateStore+=+[WKWebsiteDataStore+defaultDataStore];
[dateStore
+++fetchDataRecordsOfTypes:[WKWebsiteDataStore+allWebsiteDataTypes]
+++completionHandler:%5E(NSArray<WKWebsiteDataRecord+*>+*+__nonnull+records)+{
+++++for+(WKWebsiteDataRecord+*record++in+records)+{
+++++++if+(+[record.displayName+containsString:@"facebook"])+{
+++++++++[[WKWebsiteDataStore+defaultDataStore]
+++++++++++++removeDataOfTypes:record.dataTypes
+++++++++++++forDataRecords:@[record]
+++++++++++++completionHandler:%5E{
+++++++++++++++NSLog(@"Cookies+for+%25@+deleted+successfully",record.displayName);
+++++++++++++}
+++++++++];
+++++++}
+++++}
+++}
+];|2624170|上述代码段肯定适用于、iOS+9、及更高版本。不幸的是，如果我们在+iOS+9之前使用iOS版本的iOS，我们仍然必须坚持传统的方法，删除整个cookie存储，如下所示。|2624171|NSString+*libraryPath+=+[NSSearchPathForDirectoriesInDomains(NSLibraryDirectory,+NSUserDomainMask,+YES)+objectAtIndex:0];
NSString+*cookiesFolderPath+=+[libraryPath+stringByAppendingString:@"/Cookies"];
NSError+*errors;
[[NSFileManager+defaultManager]+removeItemAtPath:cookiesFolderPath+error:&errors];|2624172|entityMap^0|3|5|X|9|0|0|0|0|0|0|0|A|7|X|6|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|15|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|16|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|17|8|@]|D|@]|E|$]]|$1|O|3|P|5|J|7|18|8|@]|D|@]|E|$K|L]]|$1|Q|3|R|5|6|7|19|8|@]|D|@]|E|$]]|$1|S|3|T|5|J|7|1A|8|@]|D|@]|E|$K|L]]|$1|U|3|V|5|6|7|1B|8|@$9|1C|A|1D|B|C]|$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|W|3|X|5|J|7|1G|8|@]|D|@]|E|$K|L]]|$1|Y|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|Z|$]]

Apple released new APIs for iOS 9, so now we can remove domain specific cookies stored for WKWebView with below code.
Swift 4/5 version:
<pre><code>let dataStore = WKWebsiteDataStore.default()
dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { records in
 dataStore.removeData(
 ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(),
 for: records.filter { $0.displayName.contains(&quot;facebook&quot;) },
 completionHandler: completion
 )
}
</code></pre>
Below is the Swift 3 version
<pre><code>let dataStore = WKWebsiteDataStore.default()
 dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { (records) in
 for record in records {
 if record.displayName.contains(&quot;facebook&quot;) {
 dataStore.removeData(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(), for: [record], completionHandler: {
 print(&quot;Deleted: &quot; + record.displayName);
 })
 }
 }
 }
</code></pre>
Objective-C version -
<pre><code>WKWebsiteDataStore *dateStore = [WKWebsiteDataStore defaultDataStore];
[dateStore
 fetchDataRecordsOfTypes:[WKWebsiteDataStore allWebsiteDataTypes]
 completionHandler:^(NSArray&lt;WKWebsiteDataRecord *&gt; * __nonnull records) {
 for (WKWebsiteDataRecord *record in records) {
 if ( [record.displayName containsString:@&quot;facebook&quot;]) {
 [[WKWebsiteDataStore defaultDataStore]
 removeDataOfTypes:record.dataTypes
 forDataRecords:@[record]
 completionHandler:^{
 NSLog(@&quot;Cookies for %@ deleted successfully&quot;,record.displayName);
 }
 ];
 }
 }
 }
 ];
</code></pre>
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.
<pre><code>NSString *libraryPath = [NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *cookiesFolderPath = [libraryPath stringByAppendingString:@&quot;/Cookies&quot;];
NSError *errors;
[[NSFileManager defaultManager] removeItemAtPath:cookiesFolderPath error:&amp;errors];
</code></pre>

blocks|key|2676765|text|在iOS9中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2676766|////+Optional+data
NSSet+*websiteDataTypes
=+[NSSet+setWithArray:@[
++++++++++++++++++++++++WKWebsiteDataTypeDiskCache,
++++++++++++++++++++++++//WKWebsiteDataTypeOfflineWebApplicationCache,
++++++++++++++++++++++++WKWebsiteDataTypeMemoryCache,
++++++++++++++++++++++++//WKWebsiteDataTypeLocalStorage,
++++++++++++++++++++++++//WKWebsiteDataTypeCookies,
++++++++++++++++++++++++//WKWebsiteDataTypeSessionStorage,
++++++++++++++++++++++++//WKWebsiteDataTypeIndexedDBDatabases,
++++++++++++++++++++++++//WKWebsiteDataTypeWebSQLDatabases
++++++++++++++++++++++++]];
////+All+kinds+of+data
//NSSet+*websiteDataTypes+=+[WKWebsiteDataStore+allWebsiteDataTypes];
////+Date+from
NSDate+*dateFrom+=+[NSDate+dateWithTimeIntervalSince1970:0];
////+Execute
[[WKWebsiteDataStore+defaultDataStore]+removeDataOfTypes:websiteDataTypes+modifiedSince:dateFrom+completionHandler:%5E{
++++//+Done
++++NSLog(@"remove+done");
}];|code-block|syntax|javascript|2676767|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In iOS9:

<pre><code>//// Optional data
NSSet *websiteDataTypes
= [NSSet setWithArray:@[
 WKWebsiteDataTypeDiskCache,
 //WKWebsiteDataTypeOfflineWebApplicationCache,
 WKWebsiteDataTypeMemoryCache,
 //WKWebsiteDataTypeLocalStorage,
 //WKWebsiteDataTypeCookies,
 //WKWebsiteDataTypeSessionStorage,
 //WKWebsiteDataTypeIndexedDBDatabases,
 //WKWebsiteDataTypeWebSQLDatabases
 ]];
//// All kinds of data
//NSSet *websiteDataTypes = [WKWebsiteDataStore allWebsiteDataTypes];
//// Date from
NSDate *dateFrom = [NSDate dateWithTimeIntervalSince1970:0];
//// Execute
[[WKWebsiteDataStore defaultDataStore] removeDataOfTypes:websiteDataTypes modifiedSince:dateFrom completionHandler:^{
 // Done
 NSLog(@"remove done");
}];
</code></pre>

blocks|key|2624220|text|迅捷版：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2624221|var+libraryPath+=+NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.LibraryDirectory,+NSSearchPathDomainMask.UserDomainMask,+false).first!
libraryPath+%2B=+"/Cookies"

do+{
++let+result+=+try+NSFileManager.defaultManager().removeItemAtPath(libraryPath)
++print(result)
}+catch+{
++print("error")
}
NSURLCache.sharedURLCache().removeAllCachedResponses()|code-block|syntax|javascript|2624222|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift version:

<pre><code>var libraryPath = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.LibraryDirectory, NSSearchPathDomainMask.UserDomainMask, false).first!
libraryPath += "/Cookies"

do {
 let result = try NSFileManager.defaultManager().removeItemAtPath(libraryPath)
 print(result)
} catch {
 print("error")
}
NSURLCache.sharedURLCache().removeAllCachedResponses()
</code></pre>

blocks|key|2676837|text|埃斯卡鲁思的回答只是部分正确。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2676838|正确的快速版本是：|2676839|var+libraryPath+:+String+=+NSFileManager().URLsForDirectory(.LibraryDirectory,+inDomains:+.UserDomainMask).first!.path!
libraryPath+%2B=+"/Cookies"
do+{
++++try+NSFileManager.defaultManager().removeItemAtPath(libraryPath)
}+catch+{
++++print("error")
}
NSURLCache.sharedURLCache().removeAllCachedResponses()|code-block|syntax|javascript|2676840|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Esqarrouth's answer is only partially right. 
The correct swift version is:

<pre><code>var libraryPath : String = NSFileManager().URLsForDirectory(.LibraryDirectory, inDomains: .UserDomainMask).first!.path!
libraryPath += "/Cookies"
do {
 try NSFileManager.defaultManager().removeItemAtPath(libraryPath)
} catch {
 print("error")
}
NSURLCache.sharedURLCache().removeAllCachedResponses()
</code></pre>

blocks|key|2624270|text|这些选择对我都没有用，但我找到了这样一种选择：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2624271|let+config+=+WKWebViewConfiguration()
if+#available(iOS+9.0,+*)+{
++++config.websiteDataStore+=+WKWebsiteDataStore.nonPersistentDataStore()
}+else+{
+++++//+I+have+no+idea+what+to+do+for+iOS+8+yet+but+this+works+in+9.
}

let+webView+=+WKWebView(frame:+.zero,+configuration:+config)|code-block|syntax|javascript|2624272|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

None of these options worked for me but I found one that did:

<pre><code>let config = WKWebViewConfiguration()
if #available(iOS 9.0, *) {
 config.websiteDataStore = WKWebsiteDataStore.nonPersistentDataStore()
} else {
 // I have no idea what to do for iOS 8 yet but this works in 9.
}

let webView = WKWebView(frame: .zero, configuration: config)
</code></pre>

blocks|key|2624304|text|WKWebview在NSHTTPCookieStorage+sharedHTTPCookieStorage中没有存储任何内容。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2624305|清除WKWebsiteDataStore将是解决此问题的方法。|offset|length|style|BOLD|2624306|对于使用IOS8的WKwebview，这种方法不适用.|2624307|entityMap^0|0|2|I|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|P|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|K|$]]

WKWebview storing nothing inside [NSHTTPCookieStorage sharedHTTPCookieStorage].

clearing WKWebsiteDataStore will be the solution for this problem.

Still for IOS8 which is using WKwebview, this method is not applicable..

blocks|key|2676934|text|Swift+3版Sarat的答案：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2676935|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:+"+%2B+record.displayName);
++++++++++++})
++++++++}
++++}
}|code-block|syntax|javascript|2676936|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 3 version of Sarat's answer:

<pre><code>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);
 })
 }
 }
}
</code></pre>

blocks|key|2624386|text|Swift+4及较短版本：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2624387|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)
}|code-block|syntax|javascript|2624388|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 4 and shorter version:

<pre><code>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)
}
</code></pre>

blocks|key|2958436|text|支持iOS+11.0及以上的|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2958437|以下解决方案对我来说效果很好：|2958438|步骤1.从HTTPCookieStorage中删除Cookie|CODE|2958439|步骤2.从WKWebsiteDataStore中获取数据记录并删除它们。|2958440|步骤3.创建一个新的WKProcessPool|2958441|创建一个WKWebView扩展：|2958442|extension+WKWebView+{

++++func+cleanAllCookies()+{
++++++++HTTPCookieStorage.shared.removeCookies(since:+Date.distantPast)
++++++++print("All+cookies+deleted")

++++++++WKWebsiteDataStore.default().fetchDataRecords(ofTypes:+WKWebsiteDataStore.allWebsiteDataTypes())+{+records+in
++++++++++++records.forEach+{+record+in
++++++++++++++++WKWebsiteDataStore.default().removeData(ofTypes:+record.dataTypes,+for:+[record],+completionHandler:+{})
++++++++++++++++print("Cookie+:::+\(record)+deleted")
++++++++++++}
++++++++}
++++}

++++func+refreshCookies()+{
++++++++self.configuration.processPool+=+WKProcessPool()
++++}
}|code-block|syntax|javascript|2958443|使用：|2958444|override+func+viewWillAppear(_+animated:+Bool)+{
++++++++super.viewWillAppear(true)
++++++++webView.cleanAllCookies()
++++++++webView.refreshCookies()
++++}|2958445|entityMap^0|0|E|0|0|5|H|0|5|I|0|A|D|0|0|G|0|0|0|3|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|15|8|@$9|16|A|17|B|J]]|D|@]|E|$]]|$1|K|3|L|5|6|7|18|8|@$9|19|A|1A|B|J]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1B|8|@$9|1C|A|1D|B|J]]|D|@]|E|$]]|$1|O|3|P|5|6|7|1E|8|@$9|1F|A|1G|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|S|7|1H|8|@]|D|@]|E|$T|U]]|$1|V|3|W|5|6|7|1I|8|@$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|X|3|Y|5|S|7|1L|8|@]|D|@]|E|$T|U]]|$1|Z|3|-4|5|6|7|1M|8|@]|D|@]|E|$]]]|10|$]]

Supports iOS 11.0 and above

Following solution worked well for me:

Step 1. Remove Cookie from <code>HTTPCookieStorage</code>

Step 2. Fetch data records from <code>WKWebsiteDataStore</code> and delete them.

Step 3. Create a new <code>WKProcessPool</code>

Create a WKWebView Extension:

<pre><code>extension WKWebView {

 func cleanAllCookies() {
 HTTPCookieStorage.shared.removeCookies(since: Date.distantPast)
 print("All cookies deleted")

 WKWebsiteDataStore.default().fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { records in
 records.forEach { record in
 WKWebsiteDataStore.default().removeData(ofTypes: record.dataTypes, for: [record], completionHandler: {})
 print("Cookie ::: \(record) deleted")
 }
 }
 }

 func refreshCookies() {
 self.configuration.processPool = WKProcessPool()
 }
}
</code></pre>

Usage:

<pre><code>override func viewWillAppear(_ animated: Bool) {
 super.viewWillAppear(true)
 webView.cleanAllCookies()
 webView.refreshCookies()
 }
</code></pre>

blocks|key|2677020|text|In+WKWebView需要一些时间来编写和读取cookie，因此当您获取cookie的某个时候，您将得到更新的cookie，但有时它将是旧的，并且在任何服务器请求上都会出现错误。我三天内就面临这个问题了，|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2677021|解决方案:不需要在WKWebsiteDataStore中存储cookie。|2677022|吃饼干：|2677023|Swift:|2677024|extension+WKWebView+{
private+var+httpCookieStore:+WKHTTPCookieStore++{+return+WKWebsiteDataStore.default().httpCookieStore+}
func+getCookies(for+domain:+String?+=+nil,+completion:+@escaping+([String+:+Any])->())++{
++++++++var+cookieDict+=+[String+:+AnyObject]()
++++++++httpCookieStore.getAllCookies+{+cookies+in
++++++++++++for+cookie+in+cookies+{
++++++++++++++++if+let+domain+=+domain+{
++++++++++++++++++++if+cookie.domain.contains(domain)+{
++++++++++++++++++++++++cookieDict[cookie.name]+=+cookie.properties+as+AnyObject?
++++++++++++++++++++}
++++++++++++++++}+else+{
++++++++++++++++++++cookieDict[cookie.name]+=+cookie.properties+as+AnyObject?
++++++++++++++++}
++++++++++++}
++++++++++++completion(cookieDict)
++++++++}
++++}
}|code-block|syntax|javascript|2677025|目标-c+:|2677026|-(void+)getAllCookies
{
++++NSMutableString+*updatedCockies=+[[NSMutableString+alloc]+init];
++++if+(@available(iOS+11.0,+*))+{
++++++++WKHTTPCookieStore+*cookieStore+=+_webView.configuration.websiteDataStore.httpCookieStore;
++++++++NSLog(@"cookieStore+*********************:+%25@",cookieStore);
++++++++[cookieStore+getAllCookies:%5E(NSArray*+cookies)+{
++++++++++++NSHTTPCookie+*cookie;
++++++++++++for(cookie+in+cookies){
+++++++++++++++NSLog(@"%25@",cookie)
++++++++++++}
++++++++++++self->updatedCookie+=+updatedCockies;
++++++++++++NSLog(@"cookie+*********************:+%25@",+self->updatedCookie);
++++++++}];
++++}
}|2677027|每次您想要新的cookie时，都需要编写下面的代码:给定的Sharpio|2677028|Swift+:|2677029|let+config+=+WKWebViewConfiguration()
if+#available(iOS+9.0,+*)+{
++++config.websiteDataStore+=+WKWebsiteDataStore.nonPersistentDataStore()
}+else+{
+++++//+I+have+no+idea+what+to+do+for+iOS+8+yet+but+this+works+in+9.
}

let+webView+=+WKWebView(frame:+.zero,+configuration:+config)|2677030|目标C-|2677031|WKWebViewConfiguration+*wkWebConfig+=+[WKWebViewConfiguration+new];
++++wkWebConfig.websiteDataStore+=+[WKWebsiteDataStore+nonPersistentDataStore];


self.webView+=+[[WKWebView+alloc]+initWithFrame:+CGRectZero
++++++++++++++++++++++++++++++++++++++configuration:+wkWebConfig];|2677032|*每次你将得到新饼干*|2677033|entityMap^0|0|2V|0|0|0|0|6|0|0|0|6|0|0|0|0|7|0|0|0|4|0|0|0^^$0|@$1|2|3|4|5|6|7|18|8|@$9|19|A|1A|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1B|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|1C|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|1D|8|@$9|1E|A|1F|B|C]]|D|@]|E|$]]|$1|L|3|M|5|N|7|1G|8|@]|D|@]|E|$O|P]]|$1|Q|3|R|5|6|7|1H|8|@$9|1I|A|1J|B|C]]|D|@]|E|$]]|$1|S|3|T|5|N|7|1K|8|@]|D|@]|E|$O|P]]|$1|U|3|V|5|6|7|1L|8|@]|D|@]|E|$]]|$1|W|3|X|5|6|7|1M|8|@$9|1N|A|1O|B|C]]|D|@]|E|$]]|$1|Y|3|Z|5|N|7|1P|8|@]|D|@]|E|$O|P]]|$1|10|3|11|5|6|7|1Q|8|@$9|1R|A|1S|B|C]]|D|@]|E|$]]|$1|12|3|13|5|N|7|1T|8|@]|D|@]|E|$O|P]]|$1|14|3|15|5|6|7|1U|8|@]|D|@]|E|$]]|$1|16|3|-4|5|6|7|1V|8|@]|D|@]|E|$]]]|17|$]]

In WKWebView having issue to write and read its taking some time , So when you fetch the cookie some time you will get updated cookie but sometime it will be old one, and you will get error on any server request. I was facing this issue in 3 Days , 

Solution: No need to store cookies in WKWebsiteDataStore.

Getting cookies:

Swift:

<pre><code>extension WKWebView {
private var httpCookieStore: WKHTTPCookieStore { return WKWebsiteDataStore.default().httpCookieStore }
func getCookies(for domain: String? = nil, completion: @escaping ([String : Any])-&gt;()) {
 var cookieDict = [String : AnyObject]()
 httpCookieStore.getAllCookies { cookies in
 for cookie in cookies {
 if let domain = domain {
 if cookie.domain.contains(domain) {
 cookieDict[cookie.name] = cookie.properties as AnyObject?
 }
 } else {
 cookieDict[cookie.name] = cookie.properties as AnyObject?
 }
 }
 completion(cookieDict)
 }
 }
}
</code></pre>

Objective-c :

<pre><code>-(void )getAllCookies
{
 NSMutableString *updatedCockies= [[NSMutableString alloc] init];
 if (@available(iOS 11.0, *)) {
 WKHTTPCookieStore *cookieStore = _webView.configuration.websiteDataStore.httpCookieStore;
 NSLog(@"cookieStore *********************: %@",cookieStore);
 [cookieStore getAllCookies:^(NSArray* cookies) {
 NSHTTPCookie *cookie;
 for(cookie in cookies){
 NSLog(@"%@",cookie)
 }
 self-&gt;updatedCookie = updatedCockies;
 NSLog(@"cookie *********************: %@", self-&gt;updatedCookie);
 }];
 }
}
</code></pre>

Every time you want new cookie so you need to write below code:
 Given Sharpio 

Swift : 

<pre><code>let config = WKWebViewConfiguration()
if #available(iOS 9.0, *) {
 config.websiteDataStore = WKWebsiteDataStore.nonPersistentDataStore()
} else {
 // I have no idea what to do for iOS 8 yet but this works in 9.
}

let webView = WKWebView(frame: .zero, configuration: config)
</code></pre>

Objective C-- 

<pre><code>WKWebViewConfiguration *wkWebConfig = [WKWebViewConfiguration new];
 wkWebConfig.websiteDataStore = [WKWebsiteDataStore nonPersistentDataStore];


self.webView = [[WKWebView alloc] initWithFrame: CGRectZero
 configuration: wkWebConfig];
</code></pre>

*******Every time you will get new cookies********

blocks|key|2958553|text|在现有答案的基础上，如果试图清除特定WKWebView实例“webView”的cookie和数据记录，而不是“默认”存储的cookies和数据记录，则可以使用以下方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2958554|let+dataStore+=+webView.configuration.websiteDataStore
let+cookieStore+=+dataStore.httpCookieStore
cookieStore.getAllCookies+{
++++$0.forEach+{+cookie+in
++++++++cookieStore.delete(cookie)
++++}
}
dataStore.fetchDataRecords(ofTypes:+WKWebsiteDataStore.allWebsiteDataTypes())+{+records+in
++++records.forEach+{+record+in
++++++++dataStore.removeData(ofTypes:+record.dataTypes,+for:+[record])+{+}
++++}
}|code-block|syntax|javascript|2958555|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Building on top of all the existing answers, if you are trying to clear cookies and data records for a specific WKWebView instance 'webView' and not the 'default' stored cookies and data records, you could use the following:
<pre><code>let dataStore = webView.configuration.websiteDataStore
let cookieStore = dataStore.httpCookieStore
cookieStore.getAllCookies {
 $0.forEach { cookie in
 cookieStore.delete(cookie)
 }
}
dataStore.fetchDataRecords(ofTypes: WKWebsiteDataStore.allWebsiteDataTypes()) { records in
 records.forEach { record in
 dataStore.removeData(ofTypes: record.dataTypes, for: [record]) { }
 }
}
</code></pre>

blocks|key|2677059|text|Swift+5|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|2677060|++++///+old+API+cookies
++++for+cookie+in+HTTPCookieStorage.shared.cookies+??+[]+{
++++++++HTTPCookieStorage.shared.deleteCookie(cookie)
++++}
++++///+URL+cache
++++URLCache.shared.removeAllCachedResponses()
++++///+WebKit+cache
++++let+date+=+Date(timeIntervalSince1970:+0)
++++WKWebsiteDataStore.default().removeData(
++++++++ofTypes:+WKWebsiteDataStore.allWebsiteDataTypes(),
++++++++modifiedSince:+date,
++++++++completionHandler:{})|code-block|syntax|javascript|2677061|entityMap^0|0|7|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Swift 5
<pre><code> /// old API cookies
 for cookie in HTTPCookieStorage.shared.cookies ?? [] {
 HTTPCookieStorage.shared.deleteCookie(cookie)
 }
 /// URL cache
 URLCache.shared.removeAllCachedResponses()
 /// WebKit cache
 let date = Date(timeIntervalSince1970: 0)
 WKWebsiteDataStore.default().removeData(
 ofTypes: WKWebsiteDataStore.allWebsiteDataTypes(),
 modifiedSince: date,
 completionHandler:{})
</code></pre>

For now I am doing like this

<pre><code> NSHTTPCookie *cookie;
 NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];
 for (cookie in [storage cookies])
 {
 [storage deleteCookie:cookie];
 }
</code></pre>

But it is not working on iOS 8, 64-bit device.

Any other way the clean cookies of WKWebview? Any help will be appreciated. thanks.

How to delete WKWebview cookies

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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现在我是这样做的    NSHTTPCookie *cookie;    NSHTTPCookieStorage *storage = [NSHTTPCookieStorage sharedHTTPCookieStorage];    for (cookie in [storage cookies])    {    ...

问如何删除WKWebview cookie
EN

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问如何删除WKWebview cookieEN