这个我不明白。我做了一个简单的递归函数来搜索我传递给它的任何对象。
除非我尝试将窗口属性的数组（或对象）作为第一个参数，否则它会按我的预期工作。
window.search_object([window.API, window.Chat], /vote/); //Error: Not allowed to enumerate cross origin objects
window.search_object({x:window.API, y:window.Chat}, /vote/); //Error: Not allowed to enumerate cross origin objects
错误发生在线上for(var i in object)。
对象搜索功能：
window.search_object = function(object, search_string, max_recursion, search_value, history, path) {
//This will be returned in the end
var results = [];
//Just ignore document object
if(object == window.document)
return [];
//Only created in level 1 function, others get this passed by parameter
if(history==null)
history = {data:[]};
//Simplest way to find the origin of found values
if(path==null)
path = [];
//Convert sring to regext (I'm lazy)
if(typeof search_string=="string") {
search_string = new RegExp(search_string);
}
//Some errors
if(!(search_string instanceof window.RegExp)) {
console.log([search_string, search_string instanceof window.RegExp])
throw new Error("search_object() -> Parameter 2 (searched string) must be a string or RegExp object.");
}
if(typeof object != "object") {
throw new Error("search_object() -> Parameter 1 (object to search in) must be a Javascript object");
}
//Loop
for(var i in object) { //<-------THIS IS THE ERROR LINE
//Test if the property name matches
if(search_string.test(i)) {
//Add in results (no duplicate fallback here)
results.push([object[i], path.concat(i)]);
}
//Recursion
if(typeof object[i]=="object") {
//Check if we did not parse this object already
if(history.data.find(object[i])===false) {
//Remember the object
history.data.push(object[i]);
//Add results from all sub-objects
results = results.concat(window.search_object(object[i], search_string, null, null, history, path.concat(i)));
}
}
}
//console.log(results);
return results;
}
Array.prototype.find = function(needle) {
for(var i=0; i<this.length; i++) {
if(this[i]==needle)
return i;
}
return false;
}