Its getting me crazy in FF. I tried the same page in Chrome and content appears instantly.
I have an iframe that is loading a chart from another page.
The problem is that the chart do not appears until I inspect the element and click on the edit element button. Once I add space after the src property in the html code (see below for better understanding) the graph will be displayed instantly.
Graph using is of jqPlot
Before
<iframe src="http://localhost:4501/mainpage/graph.aspx"></iframe>
After
<iframe src="http://localhost:4501/mainpage/graph.aspx" ></iframe>
Image here.