Find and fix a bug (javascript devop)

My website is built with an opensource [login to view URL] platform. It has an active support forum and a community of developers: [login to view URL] The plugin I need help with is written with JavaScript. The platform uses JavaScript, Ember.js, Ruby on Rails backed, Postgres database, Redis cache, CDN. The function that is not working is made by the plugin: [login to view URL] I have a partially changed and working version of this plugin, but it works only with Android on desktop and mobile devices. It's not working in other browsers. With iOS is not working at all., even with Chrome browser. I need to make this plugin work on all devices with all the latest browsers: iOS and Windows: Safari, Chrome, Firefox, Edge, Opera. I found that there is a setting of the platform that may influence the problem: 'content security policy'. The problem disappears with all browsers except Chrome on Windows devices when I activate this setting. Also I should mention that the following script may influence: [login to view URL] You may debug the script with my server that has the necessary system installed for testing tasks.