_importIFrameSize(sFieldName, sSize) {
			var aResults = sSize.split(/(px|rem|%|vh)/);
			if (aResults.length >= 2) {
				this._oJSONModel.setProperty(`/${sFieldName}/value`, parseFloat(aResults[0]));
				this._oJSONModel.setProperty(`/${sFieldName}Unit/value`, aResults[1]);
			}
		}
Import IFrame size

@param  {string} sFieldName - Field name
@param  {string} sSize - Size to import