xmlhttprequest

问题 I'm looking for a better way to loop through a json object and pull in a certain amount of objects. I'm just a little confused on how to create the loop. Right now I'm manually hardcoding and getting the data using [] to get key pair values. I know there is a better way to do this. Here is my code: fetch("https://api.coinmarketcap.com/v2/ticker/?start=0&limit=200") .then((response) => {return response.json(); }) .then((resp => { console.log(resp); let price = resp.data; showPrice(price); }))

问题 Is there some way that I can get stack traces in a browser every time an HTTP request is made? I'm using Chrome dev tools, but I'll use a different tool, if there is one that can do this. I suppose I could monkeypatch XMLHttpRequest to throw an error, but that is a fairly awkward solution. I am trying to determine why an HTTP request was made, and being able to identify a high level function that led to that request would really help. 回答1: If you are using firefox then use Firebug plugin. In

问题 When making a call to the server of the third party domain without a request content type, I get a CORS error and no response. But when making a call with a content type text/plain (which is the the true content-type of the response) then I get a response but with a CORS error so I am unable to parse that to the dom. The question is why is the response coming the second time and not the first time. Both are still a CORS error. How can I parse the error the second time since I am getting a

问题 I used the Google Maps API version 2 function GDownloadUrl on various places to download XML/JSON data. I am converting about 3 dozen map pages to version 3 and I am unable to find an equivalent of this function. Is there one or should I use another library for handling AJAX/XHR? 回答1: There is no built in function in the google maps API v3 (there are several discussions in the v3 group if you want some history, including this one including an answer by Pamela Fox from google (at the time)).

问题 I am using the below code, to get data from API and add data to table. I want to show the users the progress of the API Request Made. Hence using If to get the status of the request using readyState Property (IXMLHTTPRequest) Problem - When this function is called, I just get one msgbox with 4. What am I missing?? Option Compare Database Dim ApiUrl As String Dim reader As New XMLHTTP60 Dim coll As Collection Dim Json As New clsJSONParser Public Sub ApiInitalisation() ApiUrl = "http://private

问题 Trying to debug some ajax calls not working properly in IE, i noticed that XHR traffic shows up in fiddler when i use Chrome or Firefox, but not for IE. But the traffic does occur, since i see it in the server logs. Thought it might be just my machine, but i've reproduced this IE8 and IE9 on Win7 and Win2k8 Server. Is there a setting in IE or fiddler to capture this traffic? 回答1: It absolutely works in IE. In fact, IE and Chrome will use the same proxy settings, so if it is working in Chrome,

问题 I need to scrape a website with a "load more button". This is my spider code written in Python: import scrapy import json import requests import re from parsel import Selector from scrapy.selector import Selector from scrapy.http import HtmlResponse headers = { 'origin': 'https://www.tayara.tn', 'accept-encoding': 'gzip, deflate, br', 'accept-language': 'en-US,en;q=0.9', 'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari

问题 I'm trying to get the HEAD response with an XMLHttpRequest in Chromium to retrive the location URL of a compressed url, but it fails: var ajax = new XMLHttpRequest(); ajax.onreadystatechange = function() { if (ajax.readyState == 4) alert(ajax.getResponseHeader("Location")) }; ajax.open('HEAD', "http://bit.ly/4Agih5", false); ajax.send(); // Refused to get unsafe header "Location" // Error: NETWORK_ERR: XMLHttpRequest Exception 101 回答1: As Mohamed indicated, you will have to create a proxy

问题 Experts, I am facing issues looping through the BLOB chunks I create for resumable chunked upload. The method I am following is as: I chunk the file to be uploaded using Blob.slice(), push all the chunks on a queue and try to send them to my server. The issue I am facing is regarding looping through the chunks. The first chunk is sent successfully and I end up in uploadNext method mentioned below from the function delegated to xhr.onreadystatechange. All good till now, but this piece of code

问题 I am trying to access a file in a bucket on google cloud storage. I have set the CORS configuration for the bucket. But I am getting this error when I make a request across https://. It works fine for requests made across http://. "XMLHttpRequest cannot load "FILENAME". Request header field X-Requested-With is not allowed by Access-Control-Allow-Headers in preflight response." 回答1: You must include X-Requested-With in the value of the responseHeader member in your config: [ { "origin": ["http