if [yii\filters\ContentNegotiator] is in `bootstrap` it does not work

[mikk150]

IF I want to use yii\filters\ContentNegotiator in bootstrap(as it implements yii\base\BootstrapInterface and therefore I should be able to do so)

It unfortunately does not work as

• Bootstrap is called on L345
• Request is poulated on L355-L363

Therefore it does not work

There are 2 solutions how to fix it

1. Move Request making to L345 and remove L355-L363 entirely
2. yii\filters\ContentNegotiator::bootstrap() should only register eventHandler on yii\base\Application on beforeAction event and handle it's own yii\filters\ContentNegotiator::beforeAction()