Merge pull request #2486 from laishere/master

fix #2484, Remove not-empty assert for Cookie.value

Author: pichillilorenzo

flutter_inappwebview/example/integration_test/cookie_manager/set_get_delete.dart

@@ -55,11 +55,19 @@ void setGetDelete() {
       expect(await cookieManager.removeSessionCookies(), isTrue);
     }
 
-    await cookieManager.setCookie(url: url, name: "myCookie", value: "myValue");
+    // Empty cookie-value is allowed according to https://datatracker.ietf.org/doc/html/rfc6265#section-4.1.1
+    await cookieManager.setCookie(url: url, name: "myCookie", value: "");
     List<Cookie> cookies = await cookieManager.getCookies(url: url);
     expect(cookies, isNotEmpty);
 
     Cookie? cookie = await cookieManager.getCookie(url: url, name: "myCookie");
+    expect(cookie?.value.toString(), "");
+
+    await cookieManager.setCookie(url: url, name: "myCookie", value: "myValue");
+    cookies = await cookieManager.getCookies(url: url);
+    expect(cookies, isNotEmpty);
+
+    cookie = await cookieManager.getCookie(url: url, name: "myCookie");
     expect(cookie?.value.toString(), "myValue");
 
     expect(

flutter_inappwebview_android/lib/src/cookie_manager.dart

@@ -83,7 +83,6 @@ class AndroidCookieManager extends PlatformCookieManager
       PlatformInAppWebViewController? webViewController}) async {
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
-    assert(value.isNotEmpty);
     assert(path.isNotEmpty);
 
     Map<String, dynamic> args = <String, dynamic>{};

flutter_inappwebview_ios/lib/src/cookie_manager.dart

@@ -87,7 +87,6 @@ class IOSCookieManager extends PlatformCookieManager with ChannelController {
 
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
-    assert(value.isNotEmpty);
     assert(path.isNotEmpty);
 
     if (await _shouldUseJavascript()) {

flutter_inappwebview_macos/lib/src/cookie_manager.dart

@@ -87,7 +87,6 @@ class MacOSCookieManager extends PlatformCookieManager with ChannelController {
 
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
-    assert(value.isNotEmpty);
     assert(path.isNotEmpty);
 
     if (await _shouldUseJavascript()) {

flutter_inappwebview_web/lib/src/cookie_manager.dart

@@ -89,7 +89,6 @@ class WebPlatformCookieManager extends PlatformCookieManager
 
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
-    assert(value.isNotEmpty);
     assert(path.isNotEmpty);
 
     await _setCookieWithJavaScript(

flutter_inappwebview_windows/lib/src/cookie_manager.dart

@@ -95,7 +95,6 @@ class WindowsCookieManager extends PlatformCookieManager
       PlatformInAppWebViewController? webViewController}) async {
     assert(url.toString().isNotEmpty);
     assert(name.isNotEmpty);
-    assert(value.isNotEmpty);
     assert(path.isNotEmpty);
 
     Map<String, dynamic> args = <String, dynamic>{};