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Test the compatibility of IE browser with JavaScript AngularJS and angularjs

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Author: User
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Test the compatibility of IE browser with JavaScript AngularJS and angularjs

Short version

To ensure that Angular applications work on IE, confirm the following:

1. polyfill JSON. stringify in IE7 or earlier versions. You can use JSON2 or JSON3 for polyfills.
 

<!doctype html> 

2. Add id = "ng-app" to the root element at the connection, and use the ng-app attribute
 


<!doctype html> 

3. You cannot use custom element tags, such as <ng: view> (use Attribute version <div ng-view> instead), or


4. If you must use custom element tags, you must take the following steps to ensure that IE8 and earlier versions can be used:
 


<!doctype html> 

5. Replace style = "{someCss}" with the ng-style flag }}". Later versions can work in Chrome and Firefox, but cannot work in IE version <= 11 (the latest version when writing this article ).



Important part:


   
     
 
    
  • Xmlns: ng-namespace-you need to specify a namespace for each custom tag.
    •  
 
    
  • Document. createElement (yourTagName)-create a custom tag name-because this is only a problem with the earlier version of IE, You need to specify the loading conditions. For each tag that does not have a namespace and is not defined in HTML, You need to declare it in advance so that IE can recognize it.
    • 

   


Version Information


IE has many problems with non-standard label elements. These problems can be categorized into two categories, each of which has its own solution.


   
     
 
    
  • If the tag name starts with "my:", it is treated as an XML namespace and must have a corresponding namespace declaration.  
    • 
    
  • If the tag does not have a symbol but is not a standard HTML tag, you must use document. createElement ('My-tag') to create it in advance.
    •  
 
    
  • If you plan to use the CSS selector to change the style of the custom tag, you must use document. createElement ('My-tag') to create a custom tag no matter whether there is a namespace.
    • 

   



Good news


The good news is that these restrictions only apply to element tag names and not to element attribute names. Therefore, no special processing is required in IE: <div my-tag your: tag> </div>
What will happen if I don't do this?


Assume that you use the unknown HTML tag mytag (the result of my: tag or my-tag is the same ):


 

 


The following DOM should be parsed:
 


#document +- HTML   +- BODY    +- mytag      +- #text: some text


The expected behavior is that the BODY element has a mytag sub-element with some text.


But this is not true in IE (if the above revision is not included)
 


#document +- HTML   +- BODY    +- mytag    +- #text: some text    +- /mytag


In IE, the BODY element has three child elements:


1. A self-disabled mytag. For example, disable a tag <br/>. /Is optional, but the <br> label does not allow sub-elements. The browser regards <br> some text </br> as the tags of three peers, some text is not a child element of <br>.


2. some text is a text node. This should be a child element of mytag, not a peer tag.


3. A corrupted self-disabled/mytag. This is a corrupt element because the element name cannot contain/characters. In addition, the seed closed element is not part of the DOM. It is only used to describe the DOM structure.


CSS-style custom tag name


To ensure that the CSS selector can work on custom elements, the names of custom elements must be created using document. createElement ('My-tag') in advance without worrying about the XML namespace.
 


<Html xmlns: ng = "needed for ng: namespace">

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