diff --git a/doc/notes.txt b/doc/notes.txt
index 28fe4166..0d52a834 100644
--- a/doc/notes.txt
+++ b/doc/notes.txt
@@ -71,7 +71,6 @@ TODO:
 - what if error in include file you can't edit b/c it never appears?
 - markdown, verilog: can't share
 - https://www.crowdsupply.com/tinyfpga/tinyfpga-bx
-- HTTPS warning
 - stego shareable images (http://pico-8.wikia.com/wiki/P8PNGFileFormat)
 - https://makecode.com/language?
 - open ROM from URL?
diff --git a/src/services.ts b/src/services.ts
index 2ac19f60..4b46d154 100644
--- a/src/services.ts
+++ b/src/services.ts
@@ -10,6 +10,7 @@ declare var firebase;
 export interface GHRepoMetadata {
   url : string;		// github url
   platform_id : string; // e.g. "vcs"
+  sha? : string;	// head commit sha
   mainPath?: string;	// main file path
 }
 
@@ -31,7 +32,16 @@ export interface GHSession extends GHRepoMetadata {
 const README_md_template = "$NAME\n=====\n\n[Open this project in 8bitworkshop](http://8bitworkshop.com/redir.html?platform=$PLATFORM&importURL=$GITHUBURL&file=$MAINFILE).\n";
 
 export function getRepos() : {[key:string]:GHRepoMetadata} {
-  return JSON.parse(localStorage.getItem('__repos') || '{}');
+  var repos = {};
+  for (var i=0; i<localStorage.length; i++) {
+    var key = localStorage.key(i);
+    if (key.startsWith('__repo__')) {
+      var repodata : GHRepoMetadata = JSON.parse(localStorage.getItem(key));
+      var path = key.substring('__repo__'.length);
+      repos[path] = repodata;
+    }
+  }
+  return repos;
 }
   
 export function parseGithubURL(ghurl:string) {
@@ -134,7 +144,8 @@ export class GithubService {
     })
     .then( (head) => {
       sess.head = head;
-      return sess.repo.git.trees(head.object.sha).fetch();
+      sess.sha = head.object.sha;
+      return sess.repo.git.trees(sess.sha).fetch();
     })
     .then( (tree) => {
       if (sess.subtreepath) {
@@ -154,13 +165,13 @@ export class GithubService {
   }
   
   bind(sess:GHSession, dobind:boolean) {
-    var repos = getRepos();
+    var key = '__repo__' + sess.repopath;
     if (dobind) {
-      repos[sess.repopath] = {url:sess.url, platform_id:sess.platform_id, mainPath:sess.mainPath};
+      var repodata : GHRepoMetadata = {url:sess.url, platform_id:sess.platform_id, mainPath:sess.mainPath, sha:sess.sha};
+      localStorage.setItem(key, JSON.stringify(repodata));
     } else {
-      delete repos[sess.repopath];
+      localStorage.removeItem(key);
     }
-    localStorage.setItem('__repos', JSON.stringify(repos));
   }
   
   import(ghurl:string) : Promise<GHSession> {
diff --git a/test/cli/testgithub.js b/test/cli/testgithub.js
index eb587216..79aebbd7 100644
--- a/test/cli/testgithub.js
+++ b/test/cli/testgithub.js
@@ -15,7 +15,7 @@ var Octokat = require('octokat');
 var test_platform_id = "_TEST";
 
 function newGH(store, platform_id) {
-  localStorage.removeItem('__repos');
+  localStorage.clear();
   // pzpinfo user
   var project = new prj.CodeProject({}, platform_id||test_platform_id, null, store);
   project.mainPath = 'local/main.asm';
@@ -33,7 +33,12 @@ describe('Store', function() {
       gh.importAndPull('https://github.com/pzpinfo/test123123/').then( (sess) => {
         console.log(sess.paths);
         assert.equal(2, sess.paths.length);
-        assert.deepEqual(serv.getRepos(), {"pzpinfo/test123123":{url: 'https://github.com/pzpinfo/test123123/', platform_id: 'vcs', mainPath:'helloworld.bas'}});
+        assert.deepEqual(serv.getRepos(), {"pzpinfo/test123123":{
+          url: 'https://github.com/pzpinfo/test123123/', 
+          platform_id: 'vcs', 
+          mainPath:'helloworld.bas', 
+          //sha:'e466d777810838065b7682587ca592c3eefc0b1c'
+          }});
         done();
       });
     });