CORS restrictions?

I’ve been trying to write a javascript that would light up the specific button on my streamdeck that corresponds to the active layout. But when I try to access the active_layout with javascript, I get this error:

Access to fetch at ‘’ from origin ‘null’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. If an opaque response serves your needs, set the request’s mode to ‘no-cors’ to fetch the resource with CORS disabled.

Just bumping this thread to see if anyone has solutions?


We have an open feature request for CORS compatibility! I am not sure when it would be implemented but it is currently being analyzed. To be certain, there may be other ways you can change the stream deck buttons when a specific layout is active. This would be similar to how I used triggers for the “one touch” control on Stream Deck here:

so in this case, changing the colour of a layout button based on GET commands; when layout is active - trigger x colour.

This I haven’t tested, but I think in theory should be possible using the following API command:


<#>= channel the layout exists in



1 = the logical number for the active layout.