Merge branch master into presentation_upgrade

1 files changed, 2 insertions, 2 deletions

diff --git a/src/client/views/pdf/PDFViewer.tsx b/src/client/views/pdf/PDFViewer.tsx
index 651b0401b..92a69c02b 100644
--- a/src/client/views/pdf/PDFViewer.tsx
+++ b/src/client/views/pdf/PDFViewer.tsx
@@ -74,7 +74,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
     private _annotationLayer: React.RefObject<HTMLDivElement> = React.createRef();
     private _disposers: { [name: string]: IReactionDisposer } = {};
     private _viewer: React.RefObject<HTMLDivElement> = React.createRef();
-    private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
+    _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
     private _selectionText: string = "";
     private _downX: number = 0;
     private _downY: number = 0;
@@ -123,7 +123,7 @@ export class PDFViewer extends React.Component<IViewerProps> {
             autoHeight => {
                 if (autoHeight) {
                     this.props.layoutDoc._nativeHeight = NumCast(this.props.Document[this.props.fieldKey + "-nativeHeight"]);
-                    this.props.setHeight(NumCast(this.props.Document[this.props.fieldKey + "-nativeHeight"]) * (this.props.scaling?.() || 1));
+                    this.props.setHeight?.(NumCast(this.props.Document[this.props.fieldKey + "-nativeHeight"]) * (this.props.scaling?.() || 1));
                 }
             });