Attach (recommended) or Link to PDF file here:

Configuration:
- Web browser and its version:
Firefox/Chrome, latest version
- Operating system and its version:
Linux,Windows,mac
- PDF.js version:
v2.12.313
- Is a browser extension:
no

Steps to reproduce the problem:
1. create a custom viewer with 
```
async function getViewer() {
const viewer = await import(/* webpackChunkName: 'pdfviewer' */ 'pdfjs-dist/web/pdf_viewer');
const eventBus = new viewer.EventBus();
return viewer.PDFSinglePageViewer({
        container,
        eventBus,
        useOnlyCssZoom: USE_ONLY_CSS_ZOOM,
        // We can enable text/annotations layers, if needed
        textLayerFactory: new viewer.DefaultTextLayerFactory(),
        annotationLayerFactory: new viewer.DefaultAnnotationLayerFactory(),
        // textLayerMode: TextLayerMode.ENABLE,
        // currently the SVG renderer is not supported
        // and it has problems with telekom documents
        // so it will be disabled until it is feature complete
        // renderer: 'svg'
    });
}
```
2. console prints an error:
```
Unable to get page for page view TypeError: this.linkService._cachedPageNumber is not a function
    ensurePdfPageLoaded_fn base_viewer.js:1502
```
    
Looks like the problem is `IPDFLinkService` which is actually using the default one `this.linkService = options.linkService || new SimpleLinkService();` which does not have this function. of course we can use `PDFLinkService` which will probably work.

console.error(
        `scrollPageIntoView: "${pageNumber}" is not a valid pageNumber parameter.`
      );
      return;
    }
    if (this.isInPresentationMode || !destArray) {
      this._setCurrentPageNumber(pageNumber,  true);
      return;
    }
    let x = 0,
      y = 0;
    let width = 0,
      height = 0,
      widthScale,
      heightScale;
    const changeOrientation = pageView.rotation % 180 !== 0;
    const pageWidth =
      (changeOrientation ? pageView.height : pageView.width) /
      pageView.scale /
      PixelsPerInch.PDF_TO_CSS_UNITS;
    const pageHeight =
      (changeOrientation ? pageView.width : pageView.height) /
      pageView.scale /
      PixelsPerInch.PDF_TO_CSS_UNITS;
    let scale = 0;
    switch (destArray[1].name) {
      case "XYZ":
        x = destArray[2];
        y = destArray[3];
        scale = destArray[4];