JS errors are not captured if Sentry org is based in EU

[peteluffman]

Issue

Currently the plugin is hardcoded to use the https://js.sentry-cdn.com domain when reporting JS errors. If the sentry organisation has been set to the EU, then the script fails to load with a "The Sentry loader you are trying to use isn't working anymore, check your configuration." message.

Solution

There should be a configuration option to specify if the org is EU or not and switch accordingly.

For the EU, the following domain should be used instead https://js-de.sentry-cdn.com