diff options
Diffstat (limited to 'libs/bower_components/jquery/src/ajax/xhr.js')
| -rw-r--r-- | libs/bower_components/jquery/src/ajax/xhr.js | 83 |
1 files changed, 58 insertions, 25 deletions
diff --git a/libs/bower_components/jquery/src/ajax/xhr.js b/libs/bower_components/jquery/src/ajax/xhr.js index 0f560f45a2..7e41409715 100644 --- a/libs/bower_components/jquery/src/ajax/xhr.js +++ b/libs/bower_components/jquery/src/ajax/xhr.js @@ -1,28 +1,42 @@ -define([ +define( [ "../core", + "../var/document", "../var/support", "../ajax" -], function( jQuery, support ) { +], function( jQuery, document, support ) { // Create the request object // (This is still attached to ajaxSettings for backward compatibility) jQuery.ajaxSettings.xhr = window.ActiveXObject !== undefined ? - // Support: IE6+ + + // Support: IE6-IE8 function() { // XHR cannot access local files, always use ActiveX for that case - return !this.isLocal && + if ( this.isLocal ) { + return createActiveXHR(); + } - // Support: IE7-8 - // oldIE XHR does not support non-RFC2616 methods (#13240) - // See http://msdn.microsoft.com/en-us/library/ie/ms536648(v=vs.85).aspx - // and http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9 - // Although this check for six methods instead of eight - // since IE also does not support "trace" and "connect" - /^(get|post|head|put|delete|options)$/i.test( this.type ) && + // Support: IE 9-11 + // IE seems to error on cross-domain PATCH requests when ActiveX XHR + // is used. In IE 9+ always use the native XHR. + // Note: this condition won't catch Edge as it doesn't define + // document.documentMode but it also doesn't support ActiveX so it won't + // reach this code. + if ( document.documentMode > 8 ) { + return createStandardXHR(); + } + // Support: IE<9 + // oldIE XHR does not support non-RFC2616 methods (#13240) + // See http://msdn.microsoft.com/en-us/library/ie/ms536648(v=vs.85).aspx + // and http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9 + // Although this check for six methods instead of eight + // since IE also does not support "trace" and "connect" + return /^(get|post|head|put|delete|options)$/i.test( this.type ) && createStandardXHR() || createActiveXHR(); } : + // For all other browsers, use the standard XMLHttpRequest object createStandardXHR; @@ -32,12 +46,13 @@ var xhrId = 0, // Support: IE<10 // Open requests must be manually aborted on unload (#5280) -if ( window.ActiveXObject ) { - jQuery( window ).on( "unload", function() { +// See https://support.microsoft.com/kb/2856746 for more info +if ( window.attachEvent ) { + window.attachEvent( "onunload", function() { for ( var key in xhrCallbacks ) { xhrCallbacks[ key ]( undefined, true ); } - }); + } ); } // Determine support properties @@ -47,7 +62,8 @@ xhrSupported = support.ajax = !!xhrSupported; // Create transport if the browser can provide an xhr if ( xhrSupported ) { - jQuery.ajaxTransport(function( options ) { + jQuery.ajaxTransport( function( options ) { + // Cross domain only allowed if supported through XMLHttpRequest if ( !options.crossDomain || support.cors ) { @@ -60,7 +76,13 @@ if ( xhrSupported ) { id = ++xhrId; // Open the socket - xhr.open( options.type, options.url, options.async, options.username, options.password ); + xhr.open( + options.type, + options.url, + options.async, + options.username, + options.password + ); // Apply custom fields if provided if ( options.xhrFields ) { @@ -79,12 +101,13 @@ if ( xhrSupported ) { // akin to a jigsaw puzzle, we simply never set it to be sure. // (it can always be set on a per-request basis or even using ajaxSetup) // For same-domain requests, won't change header if already provided. - if ( !options.crossDomain && !headers["X-Requested-With"] ) { - headers["X-Requested-With"] = "XMLHttpRequest"; + if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) { + headers[ "X-Requested-With" ] = "XMLHttpRequest"; } // Set headers for ( i in headers ) { + // Support: IE<9 // IE's ActiveXObject throws a 'Type Mismatch' exception when setting // request header to a null-value. @@ -107,6 +130,7 @@ if ( xhrSupported ) { // Was never called and is aborted or complete if ( callback && ( isAbort || xhr.readyState === 4 ) ) { + // Clean up delete xhrCallbacks[ id ]; callback = undefined; @@ -132,7 +156,8 @@ if ( xhrSupported ) { // statusText for faulty cross-domain requests try { statusText = xhr.statusText; - } catch( e ) { + } catch ( e ) { + // We normalize with Webkit giving an empty statusText statusText = ""; } @@ -144,6 +169,7 @@ if ( xhrSupported ) { // can do given current implementations) if ( !status && options.isLocal && !options.crossDomain ) { status = responses.text ? 200 : 404; + // IE - #1450: sometimes returns 1223 when it should be 204 } else if ( status === 1223 ) { status = 204; @@ -157,14 +183,21 @@ if ( xhrSupported ) { } }; + // Do send the request + // `xhr.send` may raise an exception, but it will be + // handled in jQuery.ajax (so no try/catch here) if ( !options.async ) { - // if we're in sync mode we fire the callback + + // If we're in sync mode we fire the callback callback(); } else if ( xhr.readyState === 4 ) { + // (IE6 & IE7) if it's in cache and has been // retrieved directly we need to fire the callback - setTimeout( callback ); + window.setTimeout( callback ); } else { + + // Register the callback, but delay it in case `xhr.send` throws // Add to the list of active xhr callbacks xhr.onreadystatechange = xhrCallbacks[ id ] = callback; } @@ -177,20 +210,20 @@ if ( xhrSupported ) { } }; } - }); + } ); } // Functions to create xhrs function createStandardXHR() { try { return new window.XMLHttpRequest(); - } catch( e ) {} + } catch ( e ) {} } function createActiveXHR() { try { return new window.ActiveXObject( "Microsoft.XMLHTTP" ); - } catch( e ) {} + } catch ( e ) {} } -}); +} ); |