Safari/WebKit Crashes on Johnson Controls Website Across Multiple iOS Versions (Actual devices only)

Here we are facing issue, which is mentioned in detail below: Safari on iOS consistently crashes when loading https://johnsoncontrols.com/. The error shown is: “A Problem repeatedly occurred on https://johnsoncontrols.com/” This happens with multiple iPhone models and iOS versions, suggesting a WebKit rendering or JavaScript execution issue. This occurs occasionally similar behavior on Android, iPhone (Chrome)

Environment • Devices: Any iPhone model, we are tested on available models like iPhone 12 mini, iPhone 14, iPhone 15 • iOS Versions: Latest stable releases, occasional occurrence on iOS 13 • Browser: Safari (WebKit) • Network: Both Wi-Fi and cellular tested • Additional Occurrences: Rarely reproduced on Chrome (iPhone, Narzo Android) • Occurs only on physical devices (not observed in Simulator)

Steps to Reproduce

  1. Open Safari on any affected iOS device.
  2. Navigate to https://johnsoncontrols.com/.
  3. Sroll page up and down for some time

Observe page automatically get reloads, crashed and show error message (A problem repeatedly occurred on “https://johnsoncontrols.com/").

Expected Result Page should be rendered normally without crashing.

Actual Result Safari reloads page / blank / crashed and displays errors.

Troubleshooting Done • Cleared cache and cookies • Disabled content blockers • Tested in Private mode • Reset Experimental Features • Issue persists across different networks

Technical Notes • Suspect JavaScript memory leak or DOM manipulation causing WebKit crash. • Intelligent Tracking Prevention (ITP) or site scripts may conflict.

Questions for Community • Can Apple confirm whether this aligns with any known WebKit bugs? • Are there recommended diagnostic steps (e.g., Web Inspector, crash logs, sysdiagnose specifics) for reproducing Safari scroll-related site crashes? • Should the site’s development team adjust JavaScript, rendering approach, or resource handling to improve stability on WebKit?

Answered by DTS Engineer in 870187022

I tried reproducing this problem on an iPhone 16 running iOS 26.2 (23C55), an iPad Pro (M4) running iPadOS 26.2 (23C55), and on a Mac Book Pro running macOS 26.2 (25C56) and I was not able to reproduce the problem as described. I reloaded the pages a couple of times and scrolled the page up and down for a number of times. Possibly this is a network related issue? Maybe try reproducing the problem on some other network(s)?

If this problem persists, consider opening a Technical Support Request so we can exchange additional information such as sysdiagnose reports and other logging information to try to track down the root cause of the problems you are seeing. https://developer.apple.com/support/technical/. If you start a new request please provide a url to this thread so the support request can be assigned to my attention.

I tried reproducing this problem on an iPhone 16 running iOS 26.2 (23C55), an iPad Pro (M4) running iPadOS 26.2 (23C55), and on a Mac Book Pro running macOS 26.2 (25C56) and I was not able to reproduce the problem as described. I reloaded the pages a couple of times and scrolled the page up and down for a number of times. Possibly this is a network related issue? Maybe try reproducing the problem on some other network(s)?

If this problem persists, consider opening a Technical Support Request so we can exchange additional information such as sysdiagnose reports and other logging information to try to track down the root cause of the problems you are seeing. https://developer.apple.com/support/technical/. If you start a new request please provide a url to this thread so the support request can be assigned to my attention.

Safari/WebKit Crashes on Johnson Controls Website Across Multiple iOS Versions (Actual devices only)
 
 
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