I'm trying to produce a csv export file by changing the http_meta config as described in the View Configuration chapter of the documentation.
I have a view called doExport with a corresponding doExportSuccess.php page and a executeDoExport action.
I've created a view.yml file with an all: section and can change stuff there and see the effects. This is in a config folder in the relevant module.
So I assume I need to add:
I've tried all sorts of indentation and positionings but can't seem to get the changes to take.
view.yml is attached.
Can anyone please tell me what I'm doing wrong?