Feature request: Set HTTP headers for Post action

I'm attempting to use RM to send stuff (temperature, other device status, etc.) to a Vestaboard via their API. This would work great, except the API requires you to set the auth parameters via two headers (secret + key). Would it be possible to expose this functionality within RM? It's certainly doable in a generic device.

Today I do it via IFTTT, which is an awful workaround for something that could easily run locally.

I think webcore can do this.

It can. I'd rather do it natively in RM, but Webcore is a workaround.

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