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Merge pull request #14314 from Snuffleupagus/XFA-viewer-refs-cache-fix

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[Regression] Prevent errors, during loading, in the viewer for XFA-documents (PR 14295 follow-up)
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Jonas Jenwald 2021-11-26 20:47:45 +01:00 committed by GitHub
commit e439f4d620
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1 changed files with 4 additions and 1 deletions
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5
web/pdf_link_service.js
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@ -120,7 +120,7 @@ class PDFLinkService {
if (typeof destRef === "object" && destRef !== null) {
pageNumber = this._cachedPageNumber(destRef);
if (pageNumber === null) {
if (!pageNumber) {
// Fetch the page reference if it's not yet available. This could
// only occur during loading, before all pages have been resolved.
this.pdfDocument
@ -446,6 +446,9 @@ class PDFLinkService {
* @private
*/
_cachedPageNumber(pageRef) {
if (!pageRef) {
return null;
}
const refStr =
pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`;
return this._pagesRefCache?.[refStr] || null;