Bug 252812

Summary: Memory Leak for WKWebView:evaluateJavaScript:completionHandler
Product: WebKit Reporter: Paula <paulayurie.oy>
Component: JavaScriptCoreAssignee: Nobody <webkit-unassigned>
Status: NEW    
Severity: Normal CC: achristensen, tmoura, webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: iPhone / iPad   
OS: iOS 16   
Attachments:
Description Flags
Memory Graph Screenshot none

Paula
Reported 2023-02-23 05:58:49 PST
Created attachment 465132 [details] Memory Graph Screenshot Memory leaks (Malloc 32 Bytes x 4) when calling WKWebView.evaluateJavaScript passing a completion handler. Code example: extension ViewController: WKNavigationDelegate { func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) { webView.evaluateJavaScript("document.documentElement.scrollHeight", completionHandler: { (height, error) in self.webViewHeightConstraint?.constant = height as! CGFloat }) } } On the memory graph it is possible to see that it is on JavaScriptCore. Tested on iOS 16.2 and 16.0.1.
Attachments
Memory Graph Screenshot (165.08 KB, image/png)
2023-02-23 05:58 PST, Paula 		no flags
Details
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Radar WebKit Bug Importer
Comment 1 2023-02-27 11:25:19 PST
<rdar://problem/105986674>
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