ajax

What's the difference between F5 and Ctrl-F5 in Firefox related to JavaScript events?

由 心不动则不痛 提交于 2020-12-02 05:57:27
问题 When you try this public page: http://slim.nl/shop/default.aspx (update: meanwhile this site has changed such that this question's behavior cannot be tested anymore there), you'll notice a menubar. If you hit F5 , the menu in that bar disappears. Same when you come to that page via the Back-button in your browser. It only happens on Firefox (seen on versions 3-7). Using Ctrl - F5 , the menubar reappears. To the best of my knowledge, all JavaScript events that fire when loading a page,

What's the difference between F5 and Ctrl-F5 in Firefox related to JavaScript events?

由 我的未来我决定 提交于 2020-12-02 05:55:05
问题 When you try this public page: http://slim.nl/shop/default.aspx (update: meanwhile this site has changed such that this question's behavior cannot be tested anymore there), you'll notice a menubar. If you hit F5 , the menu in that bar disappears. Same when you come to that page via the Back-button in your browser. It only happens on Firefox (seen on versions 3-7). Using Ctrl - F5 , the menubar reappears. To the best of my knowledge, all JavaScript events that fire when loading a page,

How to return success from ajax post in Node.js

由 坚强是说给别人听的谎言 提交于 2020-12-01 09:08:29
问题 I have a function like this: exports.saveAction = function (req, res) { var conn = mysql.createConnection({ host : nconf.get("database:host"), //port: 3306, user : nconf.get("database:username"), password : nconf.get("database:password"), database : nconf.get("database:database"), multipleStatements: true, //ssl: 'Amazon RDS' }); var action = req.body; conn.query('UPDATE actions SET ? WHERE Id = ?', [action, action.Id], function (err, result) { conn.end(); if (err) throw err; res.writeHead

ajax中文乱码问题的总结

由 [亡魂溺海] 提交于 2020-11-30 13:42:33
ajax中文乱码问题的总结 ajax中文乱码问题的总结 本章解决在AJAX中常见的中文问题，分析中文乱码产生的原因，以及如何解决乱码问题 1. HTTP协议的编码规定 在HTTP协议中，浏览器不能向服务器直接传递某些特殊字符，必须是这些字符进行URL编码后再进行传送。url编码遵循的规则： 将空格转换为(+) 对0-9，a-z，A-Z之间的字符保持不变。 对于所有其他的字符，用这个字符的当前字符集编码在内存中的十六进制格式表示，并在每个十六进制字节前加上一个百分号%。例如，字符“+”用%2B表示，字符“=”用%3D表示，字符“&”用%26表示，字符“国”用%B9%FA表示注意，同一个中文字符在不同的字符集编码方式下，在内存中的编码值也是不同的，一个字符的URL编码是针对字符在内存中的码值而言的，采用不同编码的同一个字符的URL编码结果是不同的。 2. encodeURI()与encodeURIComponent()函数 javaScript中提供了两个函数来对字符进行URL编码：encodeURI()与encodeURIComponent(),两者的区别在于,encodeURI函数不会对以下的字符进行处理： “! @ # $ & * ( ) = : / ; ? + ' ”，而encodeURIComponent函数会对更多的字符进行处理比如 URI的组成部分 “/”

Ajax request from jax-rs web service

由 人走茶凉 提交于 2020-11-30 00:28:28
问题 While sending a post request from my tomcat web service i got an error as below: " Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access." I'm using tomcat 9.* and developed my web service with jax-rs java web api. While i have tested my web service with postman, i got a good response from my web service (http 200 response). Yet, when i tried to send ajax post

Ajax request from jax-rs web service

由 拜拜、爱过 提交于 2020-11-30 00:27:06
问题 While sending a post request from my tomcat web service i got an error as below: " Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'null' is therefore not allowed access." I'm using tomcat 9.* and developed my web service with jax-rs java web api. While i have tested my web service with postman, i got a good response from my web service (http 200 response). Yet, when i tried to send ajax post

Parsing JSON File from XMLHttpRequest

由 五迷三道 提交于 2020-11-29 10:36:11
问题 I would like to use data within a JSON file which I get by using the XMLHttpRequest. I already checked that I recieve the file. var xhttp = new XMLHttpRequest(); xhttp.onreadystatechange = function() { if (this.readyState == 4 && this.status == 200) { document.getElementById("demo").innerHTML = this.responseText; } }; var obj = xhttp.open("GET", "../data/data.json", true); xhttp.send(); var obj1 = JSON.parse(obj); a0 = obj1.a0; This is my JSON file. {"a0":2, "a1": -2.356, "a2": 4.712} I can't

Why is jQuery Ajax not working in Cordova iOS app

由 徘徊边缘 提交于 2020-11-29 10:02:22
问题 I am building a Cordova app that uses jQuery Ajax to upload images to our server. The uploads were working for a while on both Android and iOS, then after a while they suddenly stopped working on iOS. Now, after a few seconds of trying to access a website, the request fails and I get an error message, which isn't much help. The error is like the following: readyState: 0 status: 0 statusText: "error" My code is: $.ajax("http://testapi.com/api", { data: submission, processData: false,

Why is jQuery Ajax not working in Cordova iOS app

由 回眸只為那壹抹淺笑 提交于 2020-11-29 10:01:30
问题 I am building a Cordova app that uses jQuery Ajax to upload images to our server. The uploads were working for a while on both Android and iOS, then after a while they suddenly stopped working on iOS. Now, after a few seconds of trying to access a website, the request fails and I get an error message, which isn't much help. The error is like the following: readyState: 0 status: 0 statusText: "error" My code is: $.ajax("http://testapi.com/api", { data: submission, processData: false,

A javascript upload progress display in HTML5

由 ☆樱花仙子☆ 提交于 2020-11-29 03:05:32
问题 I am very new to js and html programming. I am using following code to make a progress-bar which displays file upload progress. But it is not working on tryit editor <!DOCTYPE html> <head> <meta charset="UTF-8"> <style> .progress-wrapper { width:100%; } .progress-wrapper .progress { background-color:green; width:0%; padding:5px 0px 5px 0px; } </style> <script> function postFile() { var formdata = new FormData(); formdata.append('file1', $('#file1')[0].files[0]); var request = new
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