Preventing iframe caching in browser

How do you prevent Firefox and Safari from caching iframe content? I have a simple webpage with an iframe to a page on a different site. Both the outer page and the inner page have HTTP response...

jQuery serializeArray doesn't include the submit button that was clicked

I have a form that has two buttons. One for saving a record and the other for cancelling the save procedure. I am using the rails.js (a common AJAX/jQuery plug-in for those of you not in the know)...

Intercept a form submit in JavaScript and prevent normal submission

There seems to be lots of info on how to submit a form using javascript, but I am looking for a solution to capture when a form has been submitted and intercept it in javascript. HTML <form> ...

Calling an excel macro from the ribbon

Intro: I have written some short excel macros (tested, they work fine) and want to link them to a button in the Ribbon (Excel 2010). I had already done it successfully in Excel 2007. I am using...

Most reliable & safe method of preventing race conditions in PHP

I need to use mutexes or semaphores in PHP, and it scares me. To clarify, I'm not scared of writing deadlock-free code that synchronizes properly or afraid of the perils of concurrent programming,...

Adding a Taxonomy Filter to a Custom Post Type

There is an amazing conversation from about two years ago on the Wordpress Answer site where a number of people came up with good solutions for adding a taxonomy filter to the admin screen for...

Java: CSV File Easy Read/Write

I'm working on a program that requires quick access to a CSV comma-delimited spreadsheet file. So far I've been able to read from it easily using a BufferedReader. However, now I want to be able...

Binding events for more than a single controller in ExtJs

I've assembled a modestly sized application and I am in the process of factoring code to reduce the overall number of maintained lines, as well as performance tuning. The use case that has me...

Best Practice Way to Bind Clicks to Multiple Elements with JQuery

I've got a web-app that can have about 20 different option buttons on it, represented by spans using jQuery UI Icons. Some of these options can be used up to maybe 200 times. These options are...

How to call jQuery popup window with a partial view in it?

in my MVC web apps, I need to create a popup window with a Partial view (contains webgrid) in it, The problem is the partial view data did not show on the dialogbox, I only see the title. it...

How to scan for QR codes on button press?

I am using the code provided by https://www.hackingwithswift.com/example-code/media/how-to-scan-a-qr-code to make my own scanning app. But I like my scanning to occur on button press. Now for this...

Binding Tkinter button: function takes exactly 1 positional argument (0 given)

I have made a simple GUI in python using Tkinter. I've written it so that when a button is pressed a function (measure) is called. I'm now trying to bind the Enter key to also carry out this...

Facebook comments load inconsistently with Angular Fullstack

I have FB comments and the FB share button implemented on a blog post page. The FB comments rarely load the first time I come to my blog post page. When I refresh the page one of five things...

.tableExport is not a function

still me with the same deal.. So i'll explain it quick. I've all includes in my page so thats not it. I'm working on visual studio. I've created a table that i want to export in pdf or anything...

VBA error or bug? Sheet 2 data showing in sheet 1

I have an Excel spreadsheet that started acting strangely in the last couple of days, and I'm not sure if it's my VBA code or a bug. After running a macro to add a new row of data in sheet 1 to a...

How can i prevent the flicker of jQuery´s datepicker when changing month?

I have created a jQuery datepicker that has some days coloured (weekends, holidays). The fact is that the decission to colour that days depend on a ajax call that returns which days of the month...

RecyclerView notifyItemRemoved(position) not working properly

I have a RecyclerView with its RecyclerView.Adapter and view holder. I am trying to delete an item from list, code as follows inside onClick() on delete button in the ViewHolder int position =...

Memory Game doesn't restart after winning

I'm trying to rebrand this cool Memory Game developed by Nate Wiley. I'm having an issue with it though. When you win, it allows you to restart, but the game become unplayable when the cards...

How is inline onclick evaluated?

I am curious about how the content of the inline element attribute event works under the hood. We start off with a simple function function handler(e) { console.log(e); } Use Case 1 If we...

Eclipse HelloWorldSWT tutorial : cannot access import packages

I recently installed Eclipse to use for an online Java course and am trying out the tutorials. The Hello World tutorial didn't work, but I was able to make the program run with help found on Stack...

Prevent page jump on Button click? ReactJS

I have a ShowcaseMovie component which fetches data on componentDidMount() and sets it to state. The component renders Card components to display the data as well as four button elements upcoming,...

Preload (all) image assets in a Flutter app

I would like an easy approach to preload/cache all of my static image assets so that they can be rendered/served without a delay. I've seen that there is a precacheImage() call that can be used to...

How do I assign a function key to execute a string of commands?

I'm not sure if this is a setting in Windows or not - if it is, they've done a great job at hiding it - but I'm trying to program a function key (or some other key(s) like Shift + A or something)...

Webkit: File input picker rendered in iOS WKWebView does not work with a single tap

I'm using a frontend javascript library called Onsen UI to build a web application that looks and feels like a native iOS/Android application. I'm running into this bizarre behaviour where I have...

React Recoil selector not triggering its get when the atom state updates to a previous value

I've started learning React and Recoil by doing a quick project of my own. A single page website that has buttons where each button, in short, make a REST call and a table is created with the data...

In Angular 11, how to HTTP POST application/json to AWS Lambda via API Gateway?

I have an angular application I plan to host in AWS Amplify. It calls into Lambda functions for its REST API. I have a test application that is mostly successful, but it cannot do this one thing:...

How do I get started with Airflow, by creating a DAG that will call python code I have in another repo (on a schedule)?

I have a git repo on my local machine here with some python code c:\repos\myrepo\src\test.py <== the python script I want Airflow to run/execute on a schedule It is hosted on github. I have...

Async method: Second operation was started on this context before a previous operation completed

I'm new to Blazor and don't have much experience working with Tasks, so hopefully I'm just making a foolish mistake. I have an async method that is called via button press, but if the method is...

Gmail Addon - cannot open external links even tho they are defined in the allowlist

This started happening lately. In FireFox, the links are opening ok, but in Chrome/Safari, after a quick loading sign, nothing happens. In the console I see an error: Refused to execute a script...

How to recover tabOrder after switching `windowFlags` of some widgets in Qt?

Context: For a custom widget, similar to a menu, I have some of the content inside a "drop-down" frame when space is not sufficient: For this drop-down feature, I set the frame for those buttons...