Returns an array of Range instances corresponding to the content from the region flow that is positioned in the region.
Syntaxvar retVal = Element.msGetRegionContent();
This method has no parameters.
Returned ranges are sorted by document position and do not overlap.
If an element is not a region, this method throws a DOMException with the
InvalidAccessError error code.
Note Only available to regions that are document elements and not to regions that are pseudo-elements.