xmlhttprequest

问题 Suppose the page below is loaded from https://127.0.100.1 . The page makes an XMLHttpRequest to http://127.0.100.2 . This seems like mixed content : The page is loaded over a secure connection and a resource is loaded over an insecure connection. Mixed content should be blocked by the browser. Yet, the page below works just fine.* Why does it work: Why isn't the request blocked? Update: Going beyond the accepted answer, browsers can be configured to block mixed content for such addresses. *

问题 i am getting the error of XMLHttpRequest cannot load, No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://abc' is therefore not allowed access.. i am very new in php and codeigniter and so i cannot really understand what is going on. i tried reading other materials here in stackoverflow but it just left me blank. I am sorry if this is a duplicate post to you but I really need help. here is the ajax call for the view: $("#btnLoginFB").click(function() {

问题 i am getting the error of XMLHttpRequest cannot load, No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://abc' is therefore not allowed access.. i am very new in php and codeigniter and so i cannot really understand what is going on. i tried reading other materials here in stackoverflow but it just left me blank. I am sorry if this is a duplicate post to you but I really need help. here is the ajax call for the view: $("#btnLoginFB").click(function() {

问题 i am getting the error of XMLHttpRequest cannot load, No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://abc' is therefore not allowed access.. i am very new in php and codeigniter and so i cannot really understand what is going on. i tried reading other materials here in stackoverflow but it just left me blank. I am sorry if this is a duplicate post to you but I really need help. here is the ajax call for the view: $("#btnLoginFB").click(function() {

问题 I have the url to a possibly large (100+ Mb) file, how do I save it in a local directory using fetch? I looked around but there don't seem to be a lot of resources/tutorials on how to do this. Thank you! 回答1: Using the Fetch API you could write a function that could download from a URL like this: const downloadFile = (async (url, path) => { const res = await fetch(url); const fileStream = fs.createWriteStream(path); await new Promise((resolve, reject) => { res.body.pipe(fileStream); res.body

问题 I have a complete mess of a component. Right now I pass a function I have been trying a million things I can not make it work. export default class DatafileUpload extends Component { initialState = { fileUploading: false, fileList: [], status: 'empty', // 'empty' | 'active' | 'success' | 'exception' file: {} } state = this.initialState static propTypes = { userId: PropTypes.string.isRequired, datasetId: PropTypes.string.isRequired } scrubFilename = (filename) => filename.replace(/[^\w\d_\-.]+

问题 I’m sending a POST request via XMLHttpRequest with data entered into an HTML form. The form without interference of JavaScript would submit its data encoded as application/x-www-form-urlencoded . With the XMLHttpRequest, I wanted to send the data with via the FormData API which does not work since it treats the data as if it were encoded as multipart/form-data . Therefor I need to write the data as a query string, properly escaped, into the send method of the XMLHttpRequest . addEntryForm

问题 I’m sending a POST request via XMLHttpRequest with data entered into an HTML form. The form without interference of JavaScript would submit its data encoded as application/x-www-form-urlencoded . With the XMLHttpRequest, I wanted to send the data with via the FormData API which does not work since it treats the data as if it were encoded as multipart/form-data . Therefor I need to write the data as a query string, properly escaped, into the send method of the XMLHttpRequest . addEntryForm

问题 I'm trying to make an XMLHttpRequest that loads HTML from an external file and inserts the content of the file into the div . When I run the function, it inserts the HTML in all of the body which is not adequate. My code: --------------------------> HTML <-------------------------- <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="shit.js" charset="utf-8"></script> <link rel="stylesheet" href="index.css"> <title>Test</title> </head> <body> <button type="button" name="button"

问题 I'm trying to make an XMLHttpRequest that loads HTML from an external file and inserts the content of the file into the div . When I run the function, it inserts the HTML in all of the body which is not adequate. My code: --------------------------> HTML <-------------------------- <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="shit.js" charset="utf-8"></script> <link rel="stylesheet" href="index.css"> <title>Test</title> </head> <body> <button type="button" name="button"