Troubleshooting Application Compatibility Issues for Windows Internet Explorer 9

Chris JacksonPrincipal Consultant, “The App Compat Guy”Microsoft Corporationappcompatguy@microsoft.comhttp://www.appcompatguy.com@appcompatguy

WCL315

Value of Internet Explorer 9 for the Enterprise

The Best Way to Address App Compat?

The Best Way to Address App Compat?

The Best Way to Address App Compat?

What is Compatibility View?

Emulate IE9 Emulate IE8 Emulate IE7 IE5 IE7 IE8 IE9/Edge

<!DOCTYPE> Standards

<!DOCTYPE> Quirks

IE 5.5 Quirks

IE 5.5 QuirksIE 5.5 QuirksIE 5.5 QuirksIE 5.5 Quirks

Be Smart about Group Policies

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Your stuff Lowest security

template Disables

protected mode Passes

Windows Auth automatically

Sets compat mode automatically

HighRestricted Sites

Medium HighInternet

MediumTrusted Sites

Medium LowLocal Intranet

Trusted partner sites

Lowers security template

Disables protected mode

Cloud partners go here when they need system access

Sites you explicitly distrust

The big bad Internet

Trust

It’s Like 4 Browsers in 1!

<meta http-equiv="X-UA-Compatible" content="IE=5"/>

<meta http-equiv="X-UA-Compatible" content="IE=7"/>

<meta http-equiv="X-UA-Compatible“ content="IE=8"/>

<meta http-equiv="X-UA-Compatible" content="IE=9"/>

Varying levels of readiness

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62

First Public Working Draft Working Draft Last Call Candidate Recommendation Recommendation

Examples: WebSockets, WebSQL

First WorkingDraft

April 2009

Implemented v75in some browsers

Jan 2010

~80 drafts so far and still changing

Security issuesdisabledDec 2010

Implemented v76(breaking API)

June 2010

WebSockets

WebSQL

W3C stops work 10 November

2010

IndexedDB

Implementationin Chrome & Safari,

not FirefoxJan 2010

Significant Upgrades

New / Critical Applications

Leave Apps Working by

Default

Standards Strategy

Web App Compat Debugging

demo

appcompatguy@microsoft.com

http://www.appcompatguy.com

@appcompatguy

Track Resources

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