Add middleware responsible for setting response headers (res.setHeader function).

src/index.js

@@ -108,8 +108,10 @@ let middleware = [
   require("./middleware/core.js"),
   require("./middleware/urlSanitizer.js"),
   require("./middleware/redirects.js"),
+  // TODO: blocklist
   require("./middleware/webRootPostfixes.js"),
-  require("./middleware/rewriteURL.js")
+  require("./middleware/rewriteURL.js"),
+  require("./middleware/responseHeaders.js")
 ];
 
 function addMiddleware(mw) {

src/middleware/core.js

@@ -7,8 +7,6 @@ const serverHTTPErrorDescs = require("../res/httpErrorDescriptions.js");
 const fixNodeMojibakeURL = require("../utils/urlMojibakeFixer.js");
 const ipMatch = require("../utils/ipMatch.js");
 const matchHostname = require("../utils/matchHostname.js");
-const svrjsInfo = require("../../svrjs.json");
-const version = svrjsInfo.version;
 
 if (!process.err4xxcounter) process.err4xxcounter = 0;
 if (!process.err5xxcounter) process.err5xxcounter = 0;

src/middleware/responseHeaders.js

@@ -0,0 +1,14 @@
+module.exports = (req, res, logFacilities, config, next) => {
+  if (!req.isProxy) {
+    var hkh = config.getCustomHeaders();
+    Object.keys(hkh).forEach(function (hkS) {
+      try {
+        res.setHeader(hkS, hkh[hkS]);
+      } catch (err) {
+        // Headers will not be set.
+      }
+    });
+  }
+
+  next();
+};