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.

? pdfDocument.getPermissions()
      : Promise.resolve();
    
    
    if (pagesCount > PagesCountLimit.FORCE_SCROLL_MODE_PAGE) {
      console.warn(
        "Forcing PAGE-scrolling for performance reasons, given the length of the document."
      );
      const mode = (this._scrollMode = ScrollMode.PAGE);
      this.eventBus.dispatch("scrollmodechanged", { source: this, mode });
    }
    this._pagesCapability.promise.then(
      () => {
        this.eventBus.dispatch("pagesloaded", { source: this, pagesCount });
      },
      () => {
        
      }
    );
    this._onBeforeDraw = evt => {
      const pageView = this._pages[evt.pageNumber - 1];
      if (!pageView) {
        return;
      }
      
      
      this.#buffer.push(pageView);
    };
    this.eventBus._on("pagerender", this._onBeforeDraw);
    this._onAfterDraw = evt => {