The new iframe cards are great but would be much more useful if we could link them to variables.
If you agree, get over to here and do a thumbs up:
I agree this feature would be a valuable feature to have. Currently I am trying to have dynamic narrative text generated from questions data in the context of the filer for the dashboard etc. have tried several ways to accomplish this using Text Boxes with Markup, Text Boxes with data from a column containing the text (just shows as one long line as line breaks are ignored. Tries putting lines in rows. Currently there does not seem to be any way to format text dynamically based on data in a question. Having the Iframe Card variable would able me to call out to a webservice that generates the formatted html-based text a template based and a filter for the current dashboard and embed that dynamic text in iframe link, I am using Free Marker to merge data and text. If Markup in text boxes could also access question fields that too would enable this capability.
I requested the exact same thing just last week