One failing declareGadget should not breaks the next calls.

dist/renderjs-0.3.3.js

+/*! RenderJs */
+
+/*
+ * DOMParser HTML extension
+ * 2012-09-04
+ *
+ * By Eli Grey, http://eligrey.com
+ * Public domain.
+ * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
+ */
+/*! @source https://gist.github.com/1129031 */
+(function (DOMParser) {
+  "use strict";
+  var DOMParser_proto = DOMParser.prototype,
+    real_parseFromString = DOMParser_proto.parseFromString;
+
+  // Firefox/Opera/IE throw errors on unsupported types
+  try {
+    // WebKit returns null on unsupported types
+    if ((new DOMParser()).parseFromString("", "text/html")) {
+      // text/html parsing is natively supported
+      return;
+    }
+  } catch (ignore) {}
+
+  DOMParser_proto.parseFromString = function (markup, type) {
+    var result, doc, doc_elt, first_elt;
+    if (/^\s*text\/html\s*(?:;|$)/i.test(type)) {
+      doc = document.implementation.createHTMLDocument("");
+      doc_elt = doc.documentElement;
+
+      doc_elt.innerHTML = markup;
+      first_elt = doc_elt.firstElementChild;
+
+      if (doc_elt.childElementCount === 1
+          && first_elt.localName.toLowerCase() === "html") {
+        doc.replaceChild(first_elt, doc_elt);
+      }
+
+      result = doc;
+    } else {
+      result = real_parseFromString.apply(this, arguments);
+    }
+    return result;
+  };
+}(DOMParser));
+
+/*
+ * renderJs - Generic Gadget library renderer.
+ * http://www.renderjs.org/documentation
+ */
+(function (document, window, RSVP, DOMParser, Channel, undefined) {
+  "use strict";
+
+  var gadget_model_dict = {},
+    javascript_registration_dict = {},
+    stylesheet_registration_dict = {},
+    gadget_loading_klass,
+    loading_gadget_promise,
+    renderJS;
+
+  /////////////////////////////////////////////////////////////////
+  // RenderJSGadget
+  /////////////////////////////////////////////////////////////////
+  function RenderJSGadget() {
+    if (!(this instanceof RenderJSGadget)) {
+      return new RenderJSGadget();
+    }
+  }
+  RenderJSGadget.prototype.title = "";
+  RenderJSGadget.prototype.interface_list = [];
+  RenderJSGadget.prototype.path = "";
+  RenderJSGadget.prototype.html = "";
+  RenderJSGadget.prototype.required_css_list = [];
+  RenderJSGadget.prototype.required_js_list = [];
+
+  RenderJSGadget.ready_list = [];
+  RenderJSGadget.ready = function (callback) {
+    this.ready_list.push(callback);
+    return this;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // RenderJSGadget.declareMethod
+  /////////////////////////////////////////////////////////////////
+  RenderJSGadget.declareMethod = function (name, callback) {
+    this.prototype[name] = function () {
+      var context = this,
+        argument_list = arguments;
+
+      return new RSVP.Queue()
+        .push(function () {
+          return callback.apply(context, argument_list);
+        });
+    };
+    // Allow chain
+    return this;
+  };
+
+  RenderJSGadget
+    .declareMethod('getInterfaceList', function () {
+      // Returns the list of gadget prototype
+      return this.interface_list;
+    })
+    .declareMethod('getRequiredCSSList', function () {
+      // Returns a list of CSS required by the gadget
+      return this.required_css_list;
+    })
+    .declareMethod('getRequiredJSList', function () {
+      // Returns a list of JS required by the gadget
+      return this.required_js_list;
+    })
+    .declareMethod('getPath', function () {
+      // Returns the path of the code of a gadget
+      return this.path;
+    })
+    .declareMethod('getTitle', function () {
+      // Returns the title of a gadget
+      return this.title;
+    })
+    .declareMethod('getElement', function () {
+      // Returns the DOM Element of a gadget
+      if (this.element === undefined) {
+        throw new Error("No element defined");
+      }
+      return this.element;
+    });
+
+  /////////////////////////////////////////////////////////////////
+  // RenderJSEmbeddedGadget
+  /////////////////////////////////////////////////////////////////
+  // Class inheritance
+  function RenderJSEmbeddedGadget() {
+    if (!(this instanceof RenderJSEmbeddedGadget)) {
+      return new RenderJSEmbeddedGadget();
+    }
+    RenderJSGadget.call(this);
+  }
+  RenderJSEmbeddedGadget.ready_list = [];
+  RenderJSEmbeddedGadget.ready =
+    RenderJSGadget.ready;
+  RenderJSEmbeddedGadget.prototype = new RenderJSGadget();
+  RenderJSEmbeddedGadget.prototype.constructor = RenderJSEmbeddedGadget;
+
+  /////////////////////////////////////////////////////////////////
+  // privateDeclarePublicGadget
+  /////////////////////////////////////////////////////////////////
+  function privateDeclarePublicGadget(url, options) {
+    var gadget_instance;
+    if (options.element === undefined) {
+      options.element = document.createElement("div");
+    }
+    return new RSVP.Queue()
+      .push(function () {
+        return renderJS.declareGadgetKlass(url);
+      })
+      // Get the gadget class and instanciate it
+      .push(function (Klass) {
+        var i,
+          template_node_list = Klass.template_element.body.childNodes;
+        gadget_loading_klass = Klass;
+        gadget_instance = new Klass();
+        gadget_instance.element = options.element;
+        for (i = 0; i < template_node_list.length; i += 1) {
+          gadget_instance.element.appendChild(
+            template_node_list[i].cloneNode(true)
+          );
+        }
+        // Load dependencies if needed
+        return RSVP.all([
+          gadget_instance.getRequiredJSList(),
+          gadget_instance.getRequiredCSSList()
+        ]);
+      })
+      // Load all JS/CSS
+      .push(function (all_list) {
+        var parameter_list = [],
+          i;
+        // Load JS
+        for (i = 0; i < all_list[0].length; i += 1) {
+          parameter_list.push(renderJS.declareJS(all_list[0][i]));
+        }
+        // Load CSS
+        for (i = 0; i < all_list[1].length; i += 1) {
+          parameter_list.push(renderJS.declareCSS(all_list[1][i]));
+        }
+        return RSVP.all(parameter_list);
+      })
+      .push(function () {
+        return gadget_instance;
+      });
+  }
+
+  /////////////////////////////////////////////////////////////////
+  // RenderJSIframeGadget
+  /////////////////////////////////////////////////////////////////
+  function RenderJSIframeGadget() {
+    if (!(this instanceof RenderJSIframeGadget)) {
+      return new RenderJSIframeGadget();
+    }
+    RenderJSGadget.call(this);
+  }
+  RenderJSIframeGadget.ready_list = [];
+  RenderJSIframeGadget.ready =
+    RenderJSGadget.ready;
+  RenderJSIframeGadget.prototype = new RenderJSGadget();
+  RenderJSIframeGadget.prototype.constructor = RenderJSIframeGadget;
+
+  /////////////////////////////////////////////////////////////////
+  // privateDeclareIframeGadget
+  /////////////////////////////////////////////////////////////////
+  function privateDeclareIframeGadget(url, options) {
+    var gadget_instance,
+      iframe,
+      node,
+      iframe_loading_deferred = RSVP.defer();
+
+    if (options.element === undefined) {
+      throw new Error("DOM element is required to create Iframe Gadget " +
+                      url);
+    }
+
+    // Check if the element is attached to the DOM
+    node = options.element.parentNode;
+    while (node !== null) {
+      if (node === document) {
+        break;
+      }
+      node = node.parentNode;
+    }
+    if (node === null) {
+      throw new Error("The parent element is not attached to the DOM for " +
+                      url);
+    }
+
+    gadget_instance = new RenderJSIframeGadget();
+    iframe = document.createElement("iframe");
+//    gadget_instance.element.setAttribute("seamless", "seamless");
+    iframe.setAttribute("src", url);
+    gadget_instance.path = url;
+    gadget_instance.element = options.element;
+
+    // Attach it to the DOM
+    options.element.appendChild(iframe);
+
+    // XXX Manage unbind when deleting the gadget
+
+    // Create the communication channel with the iframe
+    gadget_instance.chan = Channel.build({
+      window: iframe.contentWindow,
+      origin: "*",
+      scope: "renderJS"
+    });
+
+    // Create new method from the declareMethod call inside the iframe
+    gadget_instance.chan.bind("declareMethod", function (trans, method_name) {
+      gadget_instance[method_name] = function () {
+        var argument_list = arguments;
+        return new RSVP.Promise(function (resolve, reject) {
+          gadget_instance.chan.call({
+            method: "methodCall",
+            params: [
+              method_name,
+              Array.prototype.slice.call(argument_list, 0)],
+            success: function (s) {
+              resolve(s);
+            },
+            error: function (e) {
+              reject(e);
+            }
+          });
+        });
+      };
+      return "OK";
+    });
+
+    // Wait for the iframe to be loaded before continuing
+    gadget_instance.chan.bind("ready", function (trans) {
+      iframe_loading_deferred.resolve(gadget_instance);
+      return "OK";
+    });
+    gadget_instance.chan.bind("failed", function (trans, params) {
+      iframe_loading_deferred.reject(params);
+      return "OK";
+    });
+    return RSVP.any([
+      iframe_loading_deferred.promise,
+      // Timeout to prevent non renderJS embeddable gadget
+      // XXX Maybe using iframe.onload/onerror would be safer?
+      RSVP.timeout(5000)
+    ]);
+  }
+
+  /////////////////////////////////////////////////////////////////
+  // RenderJSGadget.declareGadget
+  /////////////////////////////////////////////////////////////////
+  RenderJSGadget.prototype.declareGadget = function (url, options) {
+    var queue,
+      previous_loading_gadget_promise = loading_gadget_promise;
+
+    if (options === undefined) {
+      options = {};
+    }
+    if (options.sandbox === undefined) {
+      options.sandbox = "public";
+    }
+
+    // Change the global variable to update the loading queue
+    queue = new RSVP.Queue()
+      // Wait for previous gadget loading to finish first
+      .push(function () {
+        return previous_loading_gadget_promise;
+      })
+      .push(undefined, function () {
+        // Forget previous declareGadget error
+        return;
+      })
+      .push(function () {
+        var method;
+        if (options.sandbox === "public") {
+          method = privateDeclarePublicGadget;
+        } else if (options.sandbox === "iframe") {
+          method = privateDeclareIframeGadget;
+        } else {
+          throw new Error("Unsupported sandbox options '" +
+                          options.sandbox + "'");
+        }
+        return method(url, options);
+      })
+      // Set the HTML context
+      .push(function (gadget_instance) {
+        var i;
+        // Drop the current loading klass info used by selector
+        gadget_loading_klass = undefined;
+        // Trigger calling of all ready callback
+        function ready_wrapper() {
+          return gadget_instance;
+        }
+        for (i = 0; i < gadget_instance.constructor.ready_list.length;
+             i += 1) {
+          // Put a timeout?
+          queue.push(gadget_instance.constructor.ready_list[i]);
+          // Always return the gadget instance after ready function
+          queue.push(ready_wrapper);
+        }
+        return gadget_instance;
+      })
+      .push(undefined, function (e) {
+        // Drop the current loading klass info used by selector
+        // even in case of error
+        gadget_loading_klass = undefined;
+        throw e;
+      });
+    loading_gadget_promise = queue;
+    return loading_gadget_promise;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // renderJS selector
+  /////////////////////////////////////////////////////////////////
+  renderJS = function (selector) {
+    var result;
+    if (selector === window) {
+      // window is the 'this' value when loading a javascript file
+      // In this case, use the current loading gadget constructor
+      result = gadget_loading_klass;
+    } else if (selector instanceof RenderJSGadget) {
+      result = selector;
+    }
+    if (result === undefined) {
+      throw new Error("Unknown selector '" + selector + "'");
+    }
+    return result;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // renderJS.declareJS
+  /////////////////////////////////////////////////////////////////
+  renderJS.declareJS = function (url) {
+    // Prevent infinite recursion if loading render.js
+    // more than once
+    var result;
+    if (javascript_registration_dict.hasOwnProperty(url)) {
+      result = RSVP.resolve();
+    } else {
+      result = new RSVP.Promise(function (resolve, reject) {
+        var newScript;
+        newScript = document.createElement('script');
+        newScript.type = 'text/javascript';
+        newScript.src = url;
+        newScript.onload = function () {
+          javascript_registration_dict[url] = null;
+          resolve();
+        };
+        newScript.onerror = function (e) {
+          reject(e);
+        };
+        document.head.appendChild(newScript);
+      });
+    }
+    return result;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // renderJS.declareCSS
+  /////////////////////////////////////////////////////////////////
+  renderJS.declareCSS = function (url) {
+    // https://github.com/furf/jquery-getCSS/blob/master/jquery.getCSS.js
+    // No way to cleanly check if a css has been loaded
+    // So, always resolve the promise...
+    // http://requirejs.org/docs/faq-advanced.html#css
+    var result;
+    if (stylesheet_registration_dict.hasOwnProperty(url)) {
+      result = RSVP.resolve();
+    } else {
+      result = new RSVP.Promise(function (resolve, reject) {
+        var link;
+        link = document.createElement('link');
+        link.rel = 'stylesheet';
+        link.type = 'text/css';
+        link.href = url;
+        link.onload = function () {
+          stylesheet_registration_dict[url] = null;
+          resolve();
+        };
+        link.onerror = function (e) {
+          reject(e);
+        };
+        document.head.appendChild(link);
+      });
+    }
+    return result;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // renderJS.declareGadgetKlass
+  /////////////////////////////////////////////////////////////////
+  renderJS.declareGadgetKlass = function (url) {
+    var result,
+      xhr;
+
+    function parse() {
+      var tmp_constructor,
+        key,
+        parsed_html;
+      if (!gadget_model_dict.hasOwnProperty(url)) {
+        // Class inheritance
+        tmp_constructor = function () {
+          RenderJSGadget.call(this);
+        };
+        tmp_constructor.ready_list = [];
+        tmp_constructor.declareMethod =
+          RenderJSGadget.declareMethod;
+        tmp_constructor.ready =
+          RenderJSGadget.ready;
+        tmp_constructor.prototype = new RenderJSGadget();
+        tmp_constructor.prototype.constructor = tmp_constructor;
+        tmp_constructor.prototype.path = url;
+        // https://developer.mozilla.org/en-US/docs/HTML_in_XMLHttpRequest
+        // https://developer.mozilla.org/en-US/docs/Web/API/DOMParser
+        // https://developer.mozilla.org/en-US/docs/Code_snippets/HTML_to_DOM
+        tmp_constructor.template_element =
+          (new DOMParser()).parseFromString(xhr.responseText, "text/html");
+        parsed_html = renderJS.parseGadgetHTMLDocument(
+          tmp_constructor.template_element
+        );
+        for (key in parsed_html) {
+          if (parsed_html.hasOwnProperty(key)) {
+            tmp_constructor.prototype[key] = parsed_html[key];
+          }
+        }
+
+        gadget_model_dict[url] = tmp_constructor;
+      }
+
+      return gadget_model_dict[url];
+    }
+
+    function resolver(resolve, reject) {
+      function handler() {
+        var tmp_result;
+        try {
+          if (xhr.readyState === 0) {
+            // UNSENT
+            reject(xhr);
+          } else if (xhr.readyState === 4) {
+            // DONE
+            if ((xhr.status < 200) || (xhr.status >= 300) ||
+                (!/^text\/html[;]?/.test(
+                  xhr.getResponseHeader("Content-Type") || ""
+                ))) {
+              reject(xhr);
+            } else {
+              tmp_result = parse();
+              resolve(tmp_result);
+            }
+          }
+        } catch (e) {
+          reject(e);
+        }
+      }
+
+      xhr = new XMLHttpRequest();
+      xhr.open("GET", url);
+      xhr.onreadystatechange = handler;
+      xhr.setRequestHeader('Accept', 'text/html');
+      xhr.withCredentials = true;
+      xhr.send();
+    }
+
+    function canceller() {
+      if ((xhr !== undefined) && (xhr.readyState !== xhr.DONE)) {
+        xhr.abort();
+      }
+    }
+
+    if (gadget_model_dict.hasOwnProperty(url)) {
+      // Return klass object if it already exists
+      result = RSVP.resolve(gadget_model_dict[url]);
+    } else {
+      // Fetch the HTML page and parse it
+      result = new RSVP.Promise(resolver, canceller);
+    }
+    return result;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // renderJS.clearGadgetKlassList
+  /////////////////////////////////////////////////////////////////
+  // For test purpose only
+  renderJS.clearGadgetKlassList = function () {
+    gadget_model_dict = {};
+    javascript_registration_dict = {};
+    stylesheet_registration_dict = {};
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // renderJS.parseGadgetHTMLDocument
+  /////////////////////////////////////////////////////////////////
+  renderJS.parseGadgetHTMLDocument = function (document_element) {
+    var settings = {
+        title: "",
+        interface_list: [],
+        required_css_list: [],
+        required_js_list: []
+      },
+      i,
+      element;
+    if (document_element.nodeType === 9) {
+      settings.title = document_element.title;
+
+      for (i = 0; i < document_element.head.children.length; i += 1) {
+        element = document_element.head.children[i];
+        if (element.href !== null) {
+          // XXX Manage relative URL during extraction of URLs
+          // element.href returns absolute URL in firefox but "" in chrome;
+          if (element.rel === "stylesheet") {
+            settings.required_css_list.push(element.getAttribute("href"));
+          } else if (element.type === "text/javascript") {
+            settings.required_js_list.push(element.getAttribute("src"));
+          } else if (element.rel === "http://www.renderjs.org/rel/interface") {
+            settings.interface_list.push(element.getAttribute("href"));
+          }
+        }
+      }
+    } else {
+      throw new Error("The first parameter should be an HTMLDocument");
+    }
+    return settings;
+  };
+
+  /////////////////////////////////////////////////////////////////
+  // global
+  /////////////////////////////////////////////////////////////////
+  window.rJS = window.renderJS = renderJS;
+  window.RenderJSGadget = RenderJSGadget;
+  window.RenderJSEmbeddedGadget = RenderJSEmbeddedGadget;
+  window.RenderJSIframeGadget = RenderJSIframeGadget;
+
+  ///////////////////////////////////////////////////
+  // Bootstrap process. Register the self gadget.
+  ///////////////////////////////////////////////////
+
+  function bootstrap() {
+    var url = window.location.href,
+      tmp_constructor,
+      root_gadget,
+      declare_method_count = 0,
+      embedded_channel,
+      notifyReady,
+      notifyDeclareMethod,
+      gadget_ready = false;
+
+
+    // Create the gadget class for the current url
+    if (gadget_model_dict.hasOwnProperty(url)) {
+      throw new Error("bootstrap should not be called twice");
+    }
+    loading_gadget_promise = new RSVP.Promise(function (resolve, reject) {
+      if (window.self === window.top) {
+        // XXX Copy/Paste from declareGadgetKlass
+        tmp_constructor = function () {
+          RenderJSGadget.call(this);
+        };
+        tmp_constructor.declareMethod = RenderJSGadget.declareMethod;
+        tmp_constructor.ready_list = [];
+        tmp_constructor.ready = RenderJSGadget.ready;
+        tmp_constructor.prototype = new RenderJSGadget();
+        tmp_constructor.prototype.constructor = tmp_constructor;
+        tmp_constructor.prototype.path = url;
+        gadget_model_dict[url] = tmp_constructor;
+
+        // Create the root gadget instance and put it in the loading stack
+        root_gadget = new gadget_model_dict[url]();
+
+      } else {
+        // Create the communication channel
+        embedded_channel = Channel.build({
+          window: window.parent,
+          origin: "*",
+          scope: "renderJS"
+        });
+        // Create the root gadget instance and put it in the loading stack
+        tmp_constructor = RenderJSEmbeddedGadget;
+        root_gadget = new RenderJSEmbeddedGadget();
+
+        // Bind calls to renderJS method on the instance
+        embedded_channel.bind("methodCall", function (trans, v) {
+          root_gadget[v[0]].apply(root_gadget, v[1]).then(function (g) {
+            trans.complete(g);
+          }).fail(function (e) {
+            trans.error(e.toString());
+          });
+          trans.delayReturn(true);
+        });
+
+        // Notify parent about gadget instanciation
+        notifyReady = function () {
+          if ((declare_method_count === 0) && (gadget_ready === true)) {
+            embedded_channel.notify({method: "ready"});
+          }
+        };
+
+        // Inform parent gadget about declareMethod calls here.
+        notifyDeclareMethod = function (name) {
+          declare_method_count += 1;
+          embedded_channel.call({
+            method: "declareMethod",
+            params: name,
+            success: function () {
+              declare_method_count -= 1;
+              notifyReady();
+            },
+            error: function () {
+              declare_method_count -= 1;
+            }
+          });
+        };
+
+        notifyDeclareMethod("getInterfaceList");
+        notifyDeclareMethod("getRequiredCSSList");
+        notifyDeclareMethod("getRequiredJSList");
+        notifyDeclareMethod("getPath");
+        notifyDeclareMethod("getTitle");
+
+        // Surcharge declareMethod to inform parent window
+        tmp_constructor.declareMethod = function (name, callback) {
+          var result = RenderJSGadget.declareMethod.apply(
+              this,
+              [name, callback]
+            );
+          notifyDeclareMethod(name);
+          return result;
+        };
+      }
+
+      gadget_loading_klass = tmp_constructor;
+
+      function init() {
+        // XXX HTML properties can only be set when the DOM is fully loaded
+        var settings = renderJS.parseGadgetHTMLDocument(document),
+          j,
+          key;
+        for (key in settings) {
+          if (settings.hasOwnProperty(key)) {
+            tmp_constructor.prototype[key] = settings[key];
+          }
+        }
+        tmp_constructor.template_element = document.createElement("div");
+        root_gadget.element = document.body;
+        for (j = 0; j < root_gadget.element.childNodes.length; j += 1) {
+          tmp_constructor.template_element.appendChild(
+            root_gadget.element.childNodes[j].cloneNode(true)
+          );
+        }
+        RSVP.all([root_gadget.getRequiredJSList(),
+                  root_gadget.getRequiredCSSList()])
+          .then(function (all_list) {
+            var i,
+              js_list = all_list[0],
+              css_list = all_list[1],
+              queue;
+            for (i = 0; i < js_list.length; i += 1) {
+              javascript_registration_dict[js_list[i]] = null;
+            }
+            for (i = 0; i < css_list.length; i += 1) {
+              stylesheet_registration_dict[css_list[i]] = null;
+            }
+            gadget_loading_klass = undefined;
+            queue = new RSVP.Queue();
+            function ready_wrapper() {
+              return root_gadget;
+            }
+            queue.push(ready_wrapper);
+            for (i = 0; i < tmp_constructor.ready_list.length; i += 1) {
+              // Put a timeout?
+              queue.push(tmp_constructor.ready_list[i]);
+              // Always return the gadget instance after ready function
+              queue.push(ready_wrapper);
+            }
+            queue.push(resolve, function (e) {
+              reject(e);
+              throw e;
+            });
+            return queue;
+          }).fail(function (e) {
+            reject(e);
+          });
+      }
+      document.addEventListener('DOMContentLoaded', init, false);
+    });
+
+    if (window.self !== window.top) {
+      // Inform parent window that gadget is correctly loaded
+      loading_gadget_promise.then(function () {
+        gadget_ready = true;
+        notifyReady();
+      }).fail(function (e) {
+        embedded_channel.notify({method: "failed", params: e.toString()});
+        throw e;
+      });
+    }
+
+  }
+  bootstrap();
+
+}(document, window, RSVP, DOMParser, Channel));

dist/renderjs-0.3.3.min.js

+!function(a){"use strict";var b=a.prototype,c=b.parseFromString;try{if((new a).parseFromString("","text/html"))return}catch(d){}b.parseFromString=function(a,b){var d,e,f,g;return/^\s*text\/html\s*(?:;|$)/i.test(b)?(e=document.implementation.createHTMLDocument(""),f=e.documentElement,f.innerHTML=a,g=f.firstElementChild,1===f.childElementCount&&"html"===g.localName.toLowerCase()&&e.replaceChild(g,f),d=e):d=c.apply(this,arguments),d}}(DOMParser),function(a,b,c,d,e,f){"use strict";function g(){return this instanceof g?void 0:new g}function h(){return this instanceof h?(g.call(this),void 0):new h}function i(b,d){var e;return d.element===f&&(d.element=a.createElement("div")),(new c.Queue).push(function(){return o.declareGadgetKlass(b)}).push(function(a){var b,f=a.template_element.body.childNodes;for(m=a,e=new a,e.element=d.element,b=0;b<f.length;b+=1)e.element.appendChild(f[b].cloneNode(!0));return c.all([e.getRequiredJSList(),e.getRequiredCSSList()])}).push(function(a){var 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\ No newline at end of file

dist/renderjs-latest.js

-/*! RenderJs v0.3.2 */
+/*! RenderJs */
 
 /*
  * DOMParser HTML extension
@@ -311,6 +311,10 @@
       .push(function () {
         return previous_loading_gadget_promise;
       })
+      .push(undefined, function () {
+        // Forget previous declareGadget error
+        return;
+      })
       .push(function () {
         var method;
         if (options.sandbox === "public") {

dist/renderjs-latest.min.js

-!function(a){"use strict";var b=a.prototype,c=b.parseFromString;try{if((new a).parseFromString("","text/html"))return}catch(d){}b.parseFromString=function(a,b){var d,e,f,g;return/^\s*text\/html\s*(?:;|$)/i.test(b)?(e=document.implementation.createHTMLDocument(""),f=e.documentElement,f.innerHTML=a,g=f.firstElementChild,1===f.childElementCount&&"html"===g.localName.toLowerCase()&&e.replaceChild(g,f),d=e):d=c.apply(this,arguments),d}}(DOMParser),function(a,b,c,d,e,f){"use strict";function g(){return this instanceof g?void 0:new g}function h(){return this instanceof h?(g.call(this),void 0):new h}function i(b,d){var e;return d.element===f&&(d.element=a.createElement("div")),(new c.Queue).push(function(){return o.declareGadgetKlass(b)}).push(function(a){var b,f=a.template_element.body.childNodes;for(m=a,e=new a,e.element=d.element,b=0;b<f.length;b+=1)e.element.appendChild(f[b].cloneNode(!0));return c.all([e.getRequiredJSList(),e.getRequiredCSSList()])}).push(function(a){var 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\ No newline at end of file
+!function(a){"use strict";var b=a.prototype,c=b.parseFromString;try{if((new a).parseFromString("","text/html"))return}catch(d){}b.parseFromString=function(a,b){var d,e,f,g;return/^\s*text\/html\s*(?:;|$)/i.test(b)?(e=document.implementation.createHTMLDocument(""),f=e.documentElement,f.innerHTML=a,g=f.firstElementChild,1===f.childElementCount&&"html"===g.localName.toLowerCase()&&e.replaceChild(g,f),d=e):d=c.apply(this,arguments),d}}(DOMParser),function(a,b,c,d,e,f){"use strict";function g(){return this instanceof g?void 0:new g}function h(){return this instanceof h?(g.call(this),void 0):new h}function i(b,d){var e;return d.element===f&&(d.element=a.createElement("div")),(new c.Queue).push(function(){return o.declareGadgetKlass(b)}).push(function(a){var b,f=a.template_element.body.childNodes;for(m=a,e=new a,e.element=d.element,b=0;b<f.length;b+=1)e.element.appendChild(f[b].cloneNode(!0));return c.all([e.getRequiredJSList(),e.getRequiredCSSList()])}).push(function(a){var 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g,j.prototype.constructor=j,g.prototype.declareGadget=function(a,b){var d,e=n;return b===f&&(b={}),b.sandbox===f&&(b.sandbox="public"),d=(new c.Queue).push(function(){return e}).push(f,function(){}).push(function(){var c;if("public"===b.sandbox)c=i;else{if("iframe"!==b.sandbox)throw new Error("Unsupported sandbox options '"+b.sandbox+"'");c=k}return c(a,b)}).push(function(a){function b(){return a}var c;for(m=f,c=0;c<a.constructor.ready_list.length;c+=1)d.push(a.constructor.ready_list[c]),d.push(b);return a}).push(f,function(a){throw m=f,a}),n=d},o=function(a){var c;if(a===b?c=m:a instanceof g&&(c=a),c===f)throw new Error("Unknown selector '"+a+"'");return c},o.declareJS=function(b){var d;return d=q.hasOwnProperty(b)?c.resolve():new c.Promise(function(c,d){var e;e=a.createElement("script"),e.type="text/javascript",e.src=b,e.onload=function(){q[b]=null,c()},e.onerror=function(a){d(a)},a.head.appendChild(e)})},o.declareCSS=function(b){var d;return d=r.hasOwnProperty(b)?c.resolve():new c.Promise(function(c,d){var e;e=a.createElement("link"),e.rel="stylesheet",e.type="text/css",e.href=b,e.onload=function(){r[b]=null,c()},e.onerror=function(a){d(a)},a.head.appendChild(e)})},o.declareGadgetKlass=function(a){function b(){var b,c,e;if(!p.hasOwnProperty(a)){b=function(){g.call(this)},b.ready_list=[],b.declareMethod=g.declareMethod,b.ready=g.ready,b.prototype=new g,b.prototype.constructor=b,b.prototype.path=a,b.template_element=(new d).parseFromString(j.responseText,"text/html"),e=o.parseGadgetHTMLDocument(b.template_element);for(c in e)e.hasOwnProperty(c)&&(b.prototype[c]=e[c]);p[a]=b}return p[a]}function e(c,d){function e(){var a;try{0===j.readyState?d(j):4===j.readyState&&(j.status<200||j.status>=300||!/^text\/html[;]?/.test(j.getResponseHeader("Content-Type")||"")?d(j):(a=b(),c(a)))}catch(e){d(e)}}j=new XMLHttpRequest,j.open("GET",a),j.onreadystatechange=e,j.setRequestHeader("Accept","text/html"),j.withCredentials=!0,j.send()}function h(){j!==f&&j.readyState!==j.DONE&&j.abort()}var i,j;return i=p.hasOwnProperty(a)?c.resolve(p[a]):new c.Promise(e,h)},o.clearGadgetKlassList=function(){p={},q={},r={}},o.parseGadgetHTMLDocument=function(a){var b,c,d={title:"",interface_list:[],required_css_list:[],required_js_list:[]};if(9!==a.nodeType)throw new Error("The first parameter should be an HTMLDocument");for(d.title=a.title,b=0;b<a.head.children.length;b+=1)c=a.head.children[b],null!==c.href&&("stylesheet"===c.rel?d.required_css_list.push(c.getAttribute("href")):"text/javascript"===c.type?d.required_js_list.push(c.getAttribute("src")):"http://www.renderjs.org/rel/interface"===c.rel&&d.interface_list.push(c.getAttribute("href")));return d},b.rJS=b.renderJS=o,b.RenderJSGadget=g,b.RenderJSEmbeddedGadget=h,b.RenderJSIframeGadget=j,l()}(document,window,RSVP,DOMParser,Channel);
\ No newline at end of file

package.json

 {
   "name": "renderjs",
-  "version": "0.3.2",
+  "version": "0.3.3",
   "description": "RenderJs provides HTML5 gadgets",
   "main": "dist/renderjs-latest.js",
   "directories": {

renderjs.js

-/*! RenderJs v0.3.2 */
+/*! RenderJs */
 
 /*
  * DOMParser HTML extension
@@ -311,6 +311,10 @@
       .push(function () {
         return previous_loading_gadget_promise;
       })
+      .push(undefined, function () {
+        // Forget previous declareGadget error
+        return;
+      })
       .push(function () {
         var method;
         if (options.sandbox === "public") {

test/renderjs_test.js

@@ -1667,6 +1667,42 @@
       });
   });
 
+  test('One failing gadget does not prevent the others to load', function () {
+    // Check that dependencies are loaded once if 2 gadgets are created
+    var gadget = new RenderJSGadget(),
+      html_url = 'https://example.org/files/qunittest/test12345.html',
+      html_url2 = 'https://example.org/files/qunittest/test12346.html',
+      mock;
+
+    this.server.respondWith("GET", html_url, [404, {
+      "Content-Type": "text/html"
+    }, "error"]);
+    this.server.respondWith("GET", html_url2, [200, {
+      "Content-Type": "text/html"
+    }, "raw html"]);
+
+    mock = sinon.mock(renderJS, "parseGadgetHTMLDocument");
+    mock.expects("parseGadgetHTMLDocument").once().returns({});
+
+    stop();
+    gadget.declareGadget(html_url)
+      .then(function () {
+        ok(false);
+      })
+      .fail(function () {
+        return gadget.declareGadget(html_url2);
+      })
+      .then(function () {
+        ok(true);
+      })
+      .always(function () {
+        // Check that only one request has been done.
+        start();
+        mock.verify();
+        mock.restore();
+      });
+  });
+
   test('Wait for ready callback before returning', function () {
 
     // Subclass RenderJSGadget to not pollute its namespace