diff options
Diffstat (limited to 'platform/default/default_file_source.cpp')
-rw-r--r-- | platform/default/default_file_source.cpp | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/platform/default/default_file_source.cpp b/platform/default/default_file_source.cpp index bf8d7b6348..9c8a38a308 100644 --- a/platform/default/default_file_source.cpp +++ b/platform/default/default_file_source.cpp @@ -140,7 +140,17 @@ public: revalidation.priorModified = offlineResponse->modified; revalidation.priorExpires = offlineResponse->expires; revalidation.priorEtag = offlineResponse->etag; - callback(*offlineResponse); + + // Don't return resources the server requested not to show when they're stale. + // Even if we can't directly use the response, we may still use it to send a + // conditional HTTP request. + if (offlineResponse->isUsable()) { + callback(*offlineResponse); + } else { + // Since we can't return the data immediately, we'll have to hold on so that + // we can return it later in case we get a 304 Not Modified response. + revalidation.priorData = offlineResponse->data; + } } } |