Capturing multiple asset hosts

Enable capturing assets of multiple hosts

By default Percy’s SDKs will only capture assets that have a matching hostname to where the snapshot was captured.

For example, if you’re taking snapshots on https://example.com, and the page has assets hosted on https://cdn.example.com, the cdn.example assets will not be captured. In order to capture assets from other hostnames, you will need to each add one to the allowed-hostnames config.

allowed-hostnames can be set via a command line flag (-h or --allowed-hostname) when using percy exec:

$ percy exec -h cdn.example.com -- [your test command]

It also can be set in the Global SDK configuration file. Using yml as an example:

version: 2
discovery:
  allowed-hostnames:
    - cdn.example.com