Dont process removed nodes

[yanatan16]

In IE9, the following template will error:

<div data-html="some_state_var">text to be overwritten</div>

The reason is, in walk.js, var nodes = [].slice.call(el.childNodes) BEFORE process(el, next), which causes the nodes array to contain [TextNode('text to be overwritten')]. Once next() is called, however, that TextNode is now an orphan, having been removed through the data-html binding. On most browsers, this causes no problems. On IE9 however, it causes an Invalid Argument error when accessing el.data from index.js:270.

There is a larger problem here: the reactive bindings processing of deleted nodes, via data-html or otherwise. Two solutions exist:

• Never process deleted nodes. Test for el.parentNode and skip. (THIS PULL REQUEST)
• Process new nodes set by data-html and other bindings. This has a unique side effect: data-html and similar bindings can now insert reactive-processed html. So this is now possible:

reactive('<div data-html="testhtml"></div>', { testhtml: '<div data-html="testhtml"></div>' })

Thus, its clear that the right answer (to me anyway) is to not process deleted nodes.

[yanatan16]

This doesn't work. I'll try again.

[defunctzombie]

haha ok :D