NewsDownloader: add If-None-Match to headers

Missing in koreader#13171.
Frenzie · Jan 31, 2025 · 5a9dc09 · 5a9dc09
1 parent 8b31f68
commit 5a9dc09
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/plugins/newsdownloader.koplugin/main.lua b/plugins/newsdownloader.koplugin/main.lua
@@ -358,12 +358,14 @@ function NewsDownloader:processFeedSource(url, credentials, limit, unsupported_f
         local headers_cached = cached_response.headers
         logger.dbg("NewsDownloader: Cached response headers", headers_cached)
 
+        local etag = headers_cached["etag"]
         local last_modified = headers_cached["last-modified"]
-        if last_modified then
+        if etag or last_modified then
             logger.dbg("NewsDownloader: sending If-Modified-Since", last_modified, url)
             local response_body = {}
             local headers = {
-                ["If-Modified-Since"] = last_modified
+                ["If-Modified-Since"] = last_modified,
+                ["If-None-Match"] = etag,
             }
             if cookies then
                 headers["Cookie"] = cookies