Merge pull request #5221 from brandonfhall/fix/rss-feed-m4b-content-type

Fix: RSS feed serves m4b files with correct Content-Type: audio/mp4
fix: set correct Content-Type for RSS feed audio files
2026-07-05 17:01:34 +00:00 · 2026-05-03 14:40:43 -05:00 · 2026-05-02 22:13:35 -04:00
1 changed files with 6 additions and 0 deletions
--- a/server/managers/RssFeedManager.js
+++ b/server/managers/RssFeedManager.js
@ -2,6 +2,7 @@ const { Request, Response } = require('express')
 const Path = require('path')

 const Logger = require('../Logger')
+const { getAudioMimeTypeFromExtname } = require('../utils/fileUtils')
 const SocketAuthority = require('../SocketAuthority')
 const Database = require('../Database')

@ -216,6 +217,11 @@ class RssFeedManager {
      res.sendStatus(404)
      return
    }
+    // Express does not set the correct mimetype for m4b files so use our defined mimetypes if available
+    const audioMimeType = getAudioMimeTypeFromExtname(Path.extname(episodePath))
+    if (audioMimeType) {
+      res.setHeader('Content-Type', audioMimeType)
+    }
    res.sendFile(episodePath)
  }
Author	SHA1	Message	Date
advplyr	4b060febc2	Merge pull request #5221 from brandonfhall/fix/rss-feed-m4b-content-type Some checks failed CodeQL / Analyze (push) Has been cancelled Details Build and Push Docker Image / build (push) Has been cancelled Details Integration Test / build and test (push) Has been cancelled Details Run Unit Tests / Run Unit Tests (push) Has been cancelled Details Fix: RSS feed serves m4b files with correct Content-Type: audio/mp4	2026-05-03 14:40:43 -05:00
Brandon	40869bcf39	fix: set correct Content-Type for RSS feed audio files Express's mime package does not recognize .m4b, causing it to fall back to application/octet-stream. This reuses the existing getAudioMimeTypeFromExtname utility (already applied to the download endpoint) to set the correct audio/mp4 header before sendFile. Fixes #5041	2026-05-02 22:13:35 -04:00