minor fixes

Author: iliakan

1-js/04-object-basics/02-object-copy/article.md

@@ -215,8 +215,6 @@ alert(clone.sizes.width); // 51, see the result from the other one
 
 To fix that, we should use the cloning loop that examines each value of `user[key]` and, if it's an object, then replicate its structure as well. That is called a "deep cloning".
 
-There's a standard algorithm for deep cloning that handles the case above and more complex cases, called the [Structured cloning algorithm](https://html.spec.whatwg.org/multipage/structured-data.html#safe-passing-of-structured-data).
-
 We can use recursion to implement it. Or, not to reinvent the wheel, take an existing implementation, for instance [_.cloneDeep(obj)](https://lodash.com/docs#cloneDeep) from the JavaScript library [lodash](https://lodash.com).
 
 ## Summary

3-frames-and-windows/03-cross-window-communication/article.md

@@ -263,7 +263,7 @@ The window that wants to send a message calls [postMessage](mdn:api/Window.postM
 Arguments:
 
 `data`
-: The data to send. Can be any object, the data is cloned using the "structured cloning algorithm". IE supports only strings, so we should `JSON.stringify` complex objects to support that browser.
+: The data to send. Can be any object, the data is cloned using the "structured serialization algorithm". IE supports only strings, so we should `JSON.stringify` complex objects to support that browser.
 
 `targetOrigin`
 : Specifies the origin for the target window, so that only a window from the given origin will get the message.