Mermaid not reloading on subsequent previews

[ajmichels]

Setup and configuration

• Mermaid version: 8.5.0
• mediawiki/mermaid version: 3.0.0
• MediaWiki version: 1.35
• PHP version: 7.4
• Database system (MySQL, PostgresQL, etc.) and version: MySQL 5.6

Issue

I am finding that on the first preview Mermaid loads correctly. But if I tweak my data and preview again I just get three animated dots and the diagram never displays, even if I made no changes. I am not seeing any errors showing in the developer tools console or in PHP logs.

My guess is that since the subsequent preview action is an Ajax one Mermaid is not being reinitialized correctly.

[kghbln]

Thanks for reporting!