Is there a way to embed an html page in a dashboard?

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I have a trending graph that was created by a different source that was given to me in html format. I do not have the underlying data so I cannot recreate the trend. I have uploaded it to a web server and have tried to add it to the web content widget but I get an error. Does anyone have a suggestion on how I can accomplish this without recreating the graph? I don't want to use a screenshot of the graph as it gives some detail on the data when you hover over certain areas.

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