Bug Tracker

Opened 11 years ago

Last modified 8 years ago

#6485 closed feature

Solution for HTML5 in IE — at Version 38

Reported by: jonathantneal Owned by: Rick Waldron
Priority: high Milestone: 1.7
Component: core Version: 1.4.4
Keywords: html5, innershiv, innershim, needsreview, 1.7-discuss Cc: paul.irish, SlexAxton
Blocked by: Blocking:

Description (last modified by paul.irish)

I wanted to propose some solutions to be used for some major HTML5 issues in IE6, IE7, and IE8, especially in regards to javascript and jQuery.

Issues / Solutions:

  1. HTML5 is not supported on a document, html5 elements will not properly contain contents
    • document.createElement('X') triggers support for 'X' element (you know this one, it's the "shiv I mean shim" method)
  2. HTML5 is not supported with innerHTML
    • HTML5 added with innerHTML is supported when the element being innerHTML'd is already appended to a shim'd document (or document fragment!)
  3. <HTML5_elements> become <:HTML5_elements> when element is cloneNode'd
    • use an alternate cloneNode function, the default is broken and should not be used in IE anyway (for example: it should not clone events)

Example of solutions, in action, with comments:


EDIT by paulirish.. the scope of this ticket it only to fix #2 and #3. the markup in the document will still require the basic html5shiv/modernizr to adjust.

this fix will correct the assumption that "jquery is broken" because it cannot handle ajax'd in html5 content and the like.

Change History (38)

comment:1 Changed 10 years ago by Rick Waldron

Keywords: needsreview added
Priority: undecided

comment:2 Changed 10 years ago by Rick Waldron

Resolution: invalid
Status: newclosed

comment:3 Changed 10 years ago by dmethvin

Keywords: needsreview removed

Take a look at modernizr for this, it's kind of heavy to put into jQuery core because everyone would pay the price for it.

comment:4 Changed 10 years ago by SlexAxton

Cc: paul.irish SlexAxton added
Keywords: html5 innershiv innershim needsreview added
Priority: undecidedhigh
Resolution: invalid
Status: closedreopened

We've talked about different ways to handle this in the 1.5 feature list. I'm going to open this back up as something we are actively considering.

comment:5 Changed 10 years ago by paul.irish

#5327 is a duplicate of this ticket.

comment:6 Changed 10 years ago by paul.irish

Description: modified (diff)

The major problem is dealing with new elements either ajax'd in or created on the fly... issue #2 of Jon's above.

More detail from the closed dupe #5327 is here: : http://stackoverflow.com/questions/1191164/jquery-html5-append-appendto-and-ie

Test case: http://jsfiddle.net/DVnmE/

Remy's test case: http://jsbin.com/olizu

comment:7 Changed 10 years ago by john

Milestone: 1.next

So right now we're looking for a good patch to this. I'm going to bring it up again for 1.7. If we had had a patch for 1.6, it probably would've landed then.

comment:8 Changed 10 years ago by timmywil

Status: reopenedopen

comment:9 Changed 10 years ago by timmywil

#9049 is a duplicate of this ticket.

comment:10 Changed 10 years ago by john

Keywords: 1.7-discuss added

Nominating ticket for 1.7 discussion.

comment:11 Changed 10 years ago by Rick Waldron

Description: modified (diff)

+1, I believe we said we'd try this, but I'm beginning to think we should first try out a plugin.

comment:12 Changed 10 years ago by jaubourg

+1, Gain is obvious but what is the cost in size?

comment:13 Changed 10 years ago by timmywil

+1, I would use this a lot.

comment:14 Changed 10 years ago by ajpiano

Description: modified (diff)

+1, I'm for this and it would be a boon for many, but the problem isn't size - it's speed. We'd need to see a patch and do a lot of perf analysis..

Last edited 10 years ago by ajpiano (previous) (diff)

comment:15 Changed 10 years ago by paul.irish

+1, major painpoint for developers.

comment:16 Changed 10 years ago by dmethvin

+1, Fan of a team-supported solution, but first as a plugin and not in core for 1.7

comment:17 Changed 10 years ago by Rick Waldron

See also: #6286

comment:18 Changed 10 years ago by john

Description: modified (diff)

+1, Only if this can be done in such a way that doesn't cripple performance.

comment:19 Changed 10 years ago by scottgonzalez

+1, I'd like to see performance impact

comment:20 Changed 10 years ago by paul.irish

Description: modified (diff)

I was working with jdbarlett on a new version of innerShiv http://jdbartlett.github.com/innershiv/ that is much faster...

https://gist.github.com/7e1c3c76db44e5a249ff is the general idea.

We feature test to see if the shiv is necessary, and we also regex against the input to see if we should even bother shiv'ing it. If it is, then we innerHTML it into an on-DOM div and grab the new childNodes which we'll use in a docFragment.

Currently it supports two signatures:

    innerShiv(htmlstring) // documentFragment
    innerShiv(htmlstring, false) // array of nodes

But that clearly could be simplified for its purposes within jQuery.

From a perf standpoints the questions I have are:

  • does the --- 1) add a node to the dom 2) innnerHTML inside of it 3) pull it off --- trick have a significant hit?
  • is the regex against the incoming string worth it?

I'm gonna be quite busy, but I'll try to take a stab at this within jQuery and get some perf numbers, sometime, if no one else beats me to it. Help requested :)

comment:21 Changed 10 years ago by addyosmani

Description: modified (diff)


comment:22 Changed 10 years ago by ajpiano

Description: modified (diff)

+1, especially if we're able to limit its impact in the ways paul describes above

comment:23 Changed 10 years ago by jzaefferer

Description: modified (diff)


comment:24 Changed 10 years ago by paul.irish

Description: modified (diff)

Started looking at the code around this and I'm gonna leave my notes, in case they can help someone else...

Talked with jdbarlett about this at TXJS and we agreed the shiv'ing approach within Shimprove http://www.iecss.com/shimprove/ is probably a better choice here. Well, actually the pastie jon linked in this issue's description has that code in a more readable format.

Essentially, that approach is this:

var frag = document.createDocumentFragment();
// etc, ...

// fragment can now accept unknown element nodes

It looks like we'll want test coverage for:

  • html() when using the innerHTML shortcut fast path
  • clone()
  • append/prepend/before/after/replaceWith and appendto/prependto/insertbefore/insertafter/replaceAll and wrap/wrapInner/wrapAll ... all use domManip so really only a single code path there should be sufficient.

Implementation notes:

  • Appears as though everything is within manipulation.js
  • buildFragment() is used by domManip and looks to be the right place to improve things
  • a docFrag is made before sending it off to jQuery.clean() along with the html string. We could shiv it before clean or maybe within clean
  • We'll probably want a test in $.support to know if a browser collapses unknown elems. The test used in Modernizr would work well.

Open questions:

  • regex to test against incoming html? (or some indexOf magic?)
  • There is an innerHTML set action inside of clean(). Does that collapse unknown elements, or no, since it's still off-dom?
Last edited 10 years ago by paul.irish (previous) (diff)

comment:25 Changed 10 years ago by paul.irish

WIP here: https://github.com/paulirish/jquery/commits/ticket6485

  • unit test coverage and $.support.unknownElems added.

so far, the .innerHTML use from within clean() is looking like trouble that'll have to be worked around

comment:26 Changed 10 years ago by aspilicious

Drupal is working on his drupal8 release. We are planning to include shiv (inner shiv) stuff because we are going to go html5 all the way. BUT apparantly jquery is going to integrate those things for us in their next release.

Correct? When will this happen? 3 months? 6 months? a year? I would like to get this info so we can make a roadmap for drupal8.


comment:27 Changed 10 years ago by jon_neal

I tracked the bugs down to manipulation.js, within the clean function, specifically where html strings are converted into DOM nodes; the line that reads.

div = context.createElement("div")

This element is used to append the strings, and it's not part of a shimmed document. I successfully experimented by adding the following.

html5elementsArr = 'abbr|article|aside|audio|canvas|datalist|details|figcaption|figure|footer|header|hgroup|mark|meter|nav|output|progress|section|subline|summary|time|video'.split('|'),
html5elementsArrLen = html5elementsArr.length,
html5elementsArrCar = -1,						
html5safeFrag = context.createDocumentFragment();
if (html5safeFrag.createElement) while (++html5elementsArrCar < html5elementsArrLen) html5safeFrag.createElement(html5elementsArr[html5elementsArrCar]);

Of course, this html5safe fragment could have been previously generated, but for experimental purposes it worked, completely. I ran the unit tests that Paul Irish shared, and loaded up old IE7 and IE8. They passed: 100%.

comment:28 Changed 10 years ago by paul.irish

I think we got success here. :)

I can take point to integrate that code in jquery style, commit that and PR it.

The test suite index.html will also need the basic html5 shiv run on it for some of these new tests to pass in IE. I hope that's okay.

comment:29 Changed 10 years ago by paul.irish

Committed Jon's raw patch to my branch.. https://github.com/paulirish/jquery/commits/ticket6485

snover indicates we'll probably need a test similar to https://github.com/jquery/jquery/commit/0a0cf/#diff-1

for this patch.

comment:30 Changed 10 years ago by Rick Waldron

Is there anyway that we can handle creation of elements without maintaining an internal hard-coded list? I seem to recall seeing something somewhere...

comment:31 Changed 10 years ago by ajpiano

Milestone: 1.next1.7

comment:32 Changed 10 years ago by john

#9496 is a duplicate of this ticket.

comment:33 Changed 9 years ago by paul.irish

snover gave some feedback to Jonathan the day we were working on this that was useful so I tracked it back down and it's cleaned up and available here http://oksoclap.com/fNZvdYRdAU

comment:34 Changed 9 years ago by dmethvin

Owner: set to Rick Waldron
Status: openassigned

comment:35 Changed 9 years ago by Rick Waldron

Worked on this today, but ultimately, I'm hitting walls. Here are screen shots of one of the tests when I pull the branch as-is (resolving a minor conflict is required)

IE8 http://gyazo.com/950889903bb10ad7e947ef221b9b2a16.png

IE7 http://gyazo.com/127aca2933a2f3905bdcc80ba07ae23f.png

IE6 http://gyazo.com/4a16f40faf1fe6c4da40b83949d359c8.png

When I change the test to use:


The result changes in IE8


Last edited 9 years ago by Rick Waldron (previous) (diff)

comment:36 Changed 9 years ago by Rick Waldron

Last edited 9 years ago by Rick Waldron (previous) (diff)

comment:37 in reply to:  36 Changed 9 years ago by jonathantneal@…

rwaldon, unless specified by the browser or the CSS, elements are display: inline by default, so IE is handling them the way it would normally handle inline elements

Running this fiddle: http://jsfiddle.net/t6hqK/5/show/

Produces the following results in IE6: http://s4.postimage.org/5hrhkupqg/ie6_html5.png

comment:38 Changed 9 years ago by paul.irish

Description: modified (diff)
Note: See TracTickets for help on using tickets.