Bug 189222 – [Cocoa] Crash using KVO for 'serverTrust' property of WKWebView - "this class is not key value coding-compliant for the key serverTrust"

• Component: WebKit API
• Status: RESOLVED FIXED

<rdar://problem/33283179>

WKWebView.h says that the class is key-value observing (KVO) compliant for the serverTrust property, and the implementation correctly reports changes to the property’s value, but it fails to make the property key value coding-complaint, so trying to get it using -valueForKey: either directly or as a side-effect of using specifying NSKeyValueObservingOptionNew or NSKeyValueObservingOptionOld results in an exception.

Patch forthcoming.

Created attachment 348719 [details]
Override -valueForUndefinedKey: to handle "serverTrust"

Fixed in <https://trac.webkit.org/r235584>.

[Simon Fraser (smfr)]

Comment on attachment 348719 [details]
Override -valueForUndefinedKey: to handle "serverTrust"

View in context: https://bugs.webkit.org/attachment.cgi?id=348719&action=review

> Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm:823
> +- (id)valueForUndefinedKey:(NSString *)key {

{ on new line please.

(In reply to Simon Fraser (smfr) from comment #3)
> Comment on attachment 348719 [details]
> Override -valueForUndefinedKey: to handle "serverTrust"
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=348719&action=review
> 
> > Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm:823
> > +- (id)valueForUndefinedKey:(NSString *)key {
> 
> { on new line please.

Fixed in r253216.