Bootsnap is designed to work in production per:
https://github.com/Shopify/bootsnap
Over the years we have seen very few issues with it, none of which
were corruption.
This allows us to enable bootsnap in production
Having bootsnap enabled means that we can speed up deploys by
about 5 seconds per server. It also means a lot less waiting for
various production rake tasks and so on.
In some restricted setups all JS payloads need tight control.
This setting bans admins from making changes to JS on the site and
requires all themes be whitelisted to be used.
There are edge cases we still need to work through in this mode
hence this is still not supported in production and experimental.
Use an example like this to enable:
`DISCOURSE_WHITELISTED_THEME_REPOS="https://repo.com/repo.git,https://repo.com/repo2.git"`
By default this feature is not enabled and no changes are made.
One exception is that default theme id was missing a security check
this was added for correctness.
The risk here is that the database for one site goes down in the multisite setup and we drop everything to readonly mode. However, I discussed this with Sam and we agree that one database having problem is very rare. Most of the time, it is the entire DB cluster that goes down.
If `default email digest frequency` was set to "Never", users would get
a `digest_after_minutes` set to `nil` which triggered this error
in the logs if/when the site eventually changed that setting and
enabled digests:
```
NoMethodError (undefined method `>=' for nil:NilClass)
/var/www/discourse/app/mailers/user_notifications.rb:227:in `digest'
```
* DEV: `Discourse.baseUri` does not exist
This never could have worked - should have been `Discourse.BaseUri` if
anything.
* DEV: Remove Discourse.Environment
* DEV: Remove `Discourse.disableMissingIconWarning`
* DEV: A bunch more missing environment checks
This migration was added to master temporarily, then removed. This resulted in some sites being in an inconsistent state. Adding the migration back for now. If we decide the column is unneeded, then we should add a second migration to remove the column.
This reverts part of commit e1af91f5aeaf5d19837544adab416b6ae3559e0f.
* Fixes position of the top arrow, and border width of both
* Merged top and transform properties
* .5px values are required to make arrow border appear the same with as overall popover border width
I did have a chance to try it out on a Windows machine with a non-high DPI display and there were no issues. And I just re-tested it with Firefox on macOS using the "Open in Low Resolution" option and it looked more or less ok (bearing in mind that it the whole app is then a blurry mess, and that using custom zoom levels causes the arrow to break slightly, but that was also the case on Firefox before this change)
