updated README. Made sure it can be loaded as a standalone script still

README.md

@@ -9,7 +9,13 @@ Here's [a blog post explaining it](https://60devs.com/hot-reloading-for-chrome-e
 - Works by checking timestamps of files
 - Supports nested directories
 - Automatically disables itself in production
-- And it's just a <a href="https://github.com/xpl/crx-hotreload/blob/master/hot-reload.js">50 lines of code</a>!
+- And it's just <a href="https://github.com/xpl/crx-hotreload/blob/master/hot-reload.js">50 lines of code</a>!
+
+## Options
+
+|  Name        |   Value                    |  Description                           |
+|--------------|----------------------------|----------------------------------------|
+| `reloadTab`  | `boolean` (default: true)  | reload the active tab when crx changes.|
 
 ## How To Use
 
@@ -31,4 +37,10 @@ It is also available as NPM module:
 npm install crx-hotreload
 ```
 
-Then use a `require` (or `import`) to execute the script.
+In your script:
+```
+const hotReload = require('crx-hotreload');
+hotReload.default({
+    reloadTab: false
+});
+```

hot-reload.js

@@ -47,13 +47,23 @@ const watchChanges = (dir, reloadTab, lastTimestamp) => {
 
 }
 
+const defaultOpts = {
+    reloadTab: true
+};
 
 if (typeof module === 'object') {
     exports.default = (opts) => {
+        const combinedOpts = Object.assign({}, defaultOpts, opts);
         chrome.management.getSelf (self => {
             if (self.installType === 'development') {
-                chrome.runtime.getPackageDirectoryEntry (dir => watchChanges (dir, opts.reloadTab))
+                chrome.runtime.getPackageDirectoryEntry (dir => watchChanges (dir, combinedOpts.reloadTab))
             }
         })
     }
+} else {
+    chrome.management.getSelf (self => {
+        if (self.installType === 'development') {
+            chrome.runtime.getPackageDirectoryEntry (dir => watchChanges (dir, defaultOpts.reloadTab))
+        }
+    })
 }