After ios 13 upgrades every time return a domain error code 4. Before ios 13 everything worked well.
The error is:
Error Domain=WKErrorDomain Code=4 "A JavaScript exception occurred" UserInfo={WKJavaScriptExceptionLineNumber=0, WKJavaScriptExceptionMessage=, WKJavaScriptExceptionColumnNumber=0, NSLocalizedDescription=A JavaScript exception occurred}
