Gracefully degrade to non-prerendered content on timeout

Author: jotto

lib/OriginRequestInterface.js

@@ -98,10 +98,19 @@ module.exports = class OriginRequestInterface {
     return res;
   }
   createNext() {
+    // this flow will be called for prerender.cloud LAST_RESORT_TIMEOUT
+    // aka "prerendercloud middleware SKIPPED: server error: Request timed out"
+    // it will merely fall back to non-prerendered content
     return () => {
       delete this.cloudFrontRequest.headers[util.USER_AGENT_PLACEHOLDER];
-      this.cloudFrontRequest.uri = this.originalUri;
 
+      if (this.originalUri === "/") {
+        this.cloudFrontRequest.uri = "/index.html";
+      } else {
+        this.cloudFrontRequest.uri = this.originalUri;
+      }
+
+      // console.log("OriginRequest calling next", this.cloudFrontRequest);
       this.callback(null, this.cloudFrontRequest);
     };
   }