OH3.2 display grafana graph in openhab

I configured a grafana with influxdb and i’ve a designed a graph.
So far so good.
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But now I want to display this graph in openhab. So at first I used the share function within Grafana:
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Afterwards i created a page with a webfram and I inserted a webframe with the URL of the graph.
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But openhab doesn’t load the graph.
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