alt-fetch: append the path after selecting the endpoints (fixes #55)

plugins/alt-fetch/index.js

@@ -79,18 +79,23 @@
             // if we have fewer than the configured concurrency or just as many, use all of them
             if (sourceEndpoints.length <= config.concurrency) {
                 var useEndpoints = sourceEndpoints
+                
             // otherwise get `config.concurrency` endpoints at random
             } else {
                 var useEndpoints = new Array()
                 while (useEndpoints.length < config.concurrency) {
-                    // put in the address while we're at it
                     useEndpoints.push(
                         sourceEndpoints
-                            .splice(Math.floor(Math.random() * sourceEndpoints.length), 1)[0] + path
+                            .splice(Math.floor(Math.random() * sourceEndpoints.length), 1)[0]
                     )
                 }
             }
             
+            // add the rest of the path to each endpoint
+            useEndpoints.forEach((endpoint, index) => {
+                useEndpoints[index] = endpoint + path;
+            });
+            
             // debug log
             LR.log(pluginName, `fetching from alternative endpoints:\n  ${useEndpoints.join('\n  ')}`)