fix(routing): [closes #168] Construct redirect URL correctly (#170)

* docs(readme): add note about syncing forks
* fix(routing): use correct pathSegmentsToKeep

README.md

@@ -168,7 +168,9 @@ Explore the files in `src/config` to modify pairing and relay server configurati
 
 ### Troubleshooting
 
-If you run into any issues with a custom Chitchatter installation, first ensure that you are using [the latest version of the code](https://github.com/jeremyckahn/chitchatter/tree/main).
+If you run into any issues with a custom Chitchatter installation, first ensure that you are using [the latest version of the code](https://github.com/jeremyckahn/chitchatter/tree/main). If you are hosting your installation with GitHub Pages, sync your `main` branch and _not_ your `gh-pages` branch. Updating your `main` branch will trigger a proper rebuild of your `gh-pages` branch.
+
+- https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/working-with-forks/syncing-a-fork
 
 #### Peers won't connect
 

public/404.html

@@ -24,7 +24,10 @@
       // https://username.github.io/repo-name/one/two?a=b&c=d#qwe becomes
       // https://username.github.io/repo-name/?/one/two&a=b~and~c=d#qwe
       // Otherwise, leave pathSegmentsToKeep as 0.
-      var pathSegmentsToKeep = 0
+      //var pathSegmentsToKeep = 0
+      var pathSegmentsToKeep = window.location.origin.endsWith('.github.io')
+        ? 1
+        : 0
 
       var l = window.location
       l.replace(