Safari/WKWebView memory-related crashes on a webpage

Reproducible on iPhone 12 and other models on iOS 14.4.2 and latest developer betas.

Code Block
com.apple.WebKit.WebContent killed by jetsam reason highwater


The page uses "significant memory" on macOS Safari.

Feedback Assistant ID: FB9078728
Safari/WKWebView memory-related crashes on a webpage
 
 
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