IE8 adds colon before HTML5 tags

[Piotr Jasiun]

There are some problems with HTML5 on IE8.

• IE8 adds colon before HTML5 tags when native clone is called, this should be fixed.
• There are a problem with document fragment.
• getHtmlFromRange should works fine with HTML5 tags on IE8.

Needs tests and fixes.

[Piotr Jasiun]

Unfortunately div.innerHTML = element.outerHTML as a workaround for cloneNode as it is described ​here does not work (see attachment). We need another solution.

[Piotr Jasiun]

node.clone and documentFragment.getHtml seems to be the only two places which were broken. I decided to fixed them touching as little code as it is possible, so the fix for the edge case does not bring some more serious problems.

• In node.clone I iterate over the tree and replace nodes which names start with colons. Most probably previous fix would work if we add '_' a the begging of the string and remove it later, but it would totally change the behavior of clone method on IE8 and could bring new bugs.
• In documentFragment.getHtml I use regexp on the output string. I tried to use fixed clone method there, but it seems not to work on documentFragment. I have changed that method so it do with documentFragment the same it do with element, but the result outerHTML still contain colons.

[Piotr Jasiun]

I also checked if it makes sens to enableHtml5Elements on every documentFramgent, but it does not, because the only case we need to do this is setting innterHtml, so the native fragment is needed and for that case we already have _getHtml5ShivFrag helper. If we add HTML5 elements any other way, ex. by adding child node with the HTML5, then enableHtml5Elements change nothing.

[Piotr Jasiun]

Changes in ​t/13101b.

[Piotrek Koszuliński]

I pushed one additional commit to ​branch:t/13101b that shows how to use clone() with docFrag. The problem was inside renameNode() which didn't work with elements inside document fragments.

[Piotr Jasiun]

Fixed some details and added tests. Changes in ​t/13101b. Branch rebased on the newest major.

[Piotrek Koszuliński]

Fixed on major with ​git:7342d18.