Summary of impact:

At approximately 06:40 UTC on 14 September 2022, as part of the fortnightly release, we released a change for EasyEditor affecting how it operated for Mac/Safari users. During this time, Mac/Safari users experienced issues with designing and saving email campaigns. The change we made was part of a beta release related to our ‘Product Blocks’ feature. The resolution for the issue was to revert this change. We restored full EasyEditor functionality for Mac/Safari users at 10:50 UTC on 14 September 2022.

Root Cause:

We deployed code that called a function not supported by the Safari API. The call to that method crashed Safari during the loading cycle of EasyEditor, meaning the remainder of EasyEditor couldn’t load successfully.

Mitigation:

A summarized timeline of events (in UTC):

• 06:40: We deployed the change that impacted how EasyEditor operated in Safari
• 08:45: We were alerted to the issue and begun working on a resolution
• 10:50: We rolled back the change in question, meaning EasyEditor in Safari began to operate as expected.

Next Steps:

From here, we’ll:

• Investigate options to navigate around the missing method in the Safari API
• Review our testing plans and capabilities for Mac/Safari.