230688 2021-09-23 06:10:55 -0700 REGRESSION (Safari 15): Toggling object element display property reloads the object 2023-08-21 15:45:57 -0700 1 1 1 Unclassified WebKit DOM Safari Technology Preview All iOS 14 NEW BrowserCompat, InRadar P2 Normal --- 1 ben.browitt webkit-unassigned ahmad.saleem792 ap bfulgham cdumez mike rniwa webkit-bug-importer zalan oldest_to_newest 1796467 0 ben.browitt 2021-09-23 06:10:55 -0700 When you toggle <object> HTML element between display:block and display:none the object is reloaded. Didn't happen on iPadOS 14.0 and doesn't happen on Chrome and FireFox. Tested on iPadOS 15.0, 14.8 To reproduce see that the timestamp on Safari changes every time you click on the 'Toggle Display' button. On Chrome and Firefox the timestamp doesn't change. https://jsbin.com/yoboxuhegu/1/edit?html,output <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width"> </head> <body> <button onclick="toggleDisplay()">Toggle Display</button> <object style="display: block;" data="data:text/html;utf-8,<body onload='document.body.innerText = Date.now()'>hello"></object> <script> let el = document.querySelector('object'); let count = 1; function log() { el.text = count; count++; } function toggleDisplay() { let display = el.style.display == 'block' ? 'none' : 'block'; el.style.display = display; } </script> </body> </html> 1797214 1 webkit-bug-importer 2021-09-25 12:09:50 -0700 <rdar://problem/83534931> 1890255 2 ahmad.saleem792 2022-08-10 04:29:27 -0700 I am able to reproduce this bug in Safari 15.6 and Technical Preview 150 on macOS 12.5 and toggling "Display" button changes timestamp every time unlike other browsers (Chrome Canary 106 and Firefox Nightly 105). Thanks! 1961661 3 ahmad.saleem792 2023-06-14 15:59:33 -0700 Adding 'BrowserCompat' since it is still reproducible in STP172.