Fix index problem

modules/docs/src/Volo.Docs.Application/Volo/Docs/Documents/DocumentAppService.cs

@@ -383,12 +383,22 @@ namespace Volo.Docs.Documents
                 return await GetDocumentAsync(documentName, project, languageCode, version);
             }
 
-            if (document.LastCachedTime + _cacheTimeout < DateTime.Now)
+            if (document.LastCachedTime + _cacheTimeout >= DateTime.Now)
             {
-                return await GetDocumentAsync(documentName, project, languageCode, version, document);
+                return CreateDocumentWithDetailsDto(project, document);
             }
 
-            return CreateDocumentWithDetailsDto(project, document);
+            try
+            {
+                return await GetDocumentAsync(documentName, project, languageCode, version, document);
+            }
+            catch
+            {
+                Logger.LogWarning(
+                    "Could not retrieve the document ({documentName}, {languageCode}, {version}) from the source. Using the cached version.",
+                    documentName, languageCode, version);
+                return CreateDocumentWithDetailsDto(project, document);
+            }
         }
 
         protected virtual DocumentWithDetailsDto CreateDocumentWithDetailsDto(Project project, Document document)

modules/docs/src/Volo.Docs.Domain/Volo/Docs/GitHub/Documents/GithubDocumentSource.cs

@@ -410,18 +410,6 @@ namespace Volo.Docs.GitHub.Documents
 
                 return await _githubRepositoryManager.GetFileRawStringContentAsync(rawDocumentUrl, token, userAgent);
             }
-            catch (HttpRequestException ex)
-            {
-                Logger.LogWarning($"Could not retrieve the document ({rawDocumentUrl}) from Github. Trying to get it from database...");
-                
-                var document = await _documentRepository.FindAsync(project.Id, documentName, languageCode, version);
-                if (document == null)
-                {
-                    throw new DocumentNotFoundException(rawDocumentUrl);
-                }
-                
-                return document.Content;
-            }
             catch (Exception ex)
             {
                 //TODO: Only handle when document is really not available