AskHandle Blog

Featured insights from the AskHandle team.

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Wildcard CORS Why Chat Widgets Rely on It

January 30, 2026 · Alicia Gopin · 3 min read

Embeddable chat widgets—live chat bubbles, AI assistants, and support bots—are ubiquitous on modern websites. Providers deliver a simple <script> tag that clients insert into their HTML for instant integration. Yet this ease comes with a technical hurdle: the widget must perform cross-origin API calls from the client's domain to the provider's servers, which runs afoul of the browser's same-origin policy and frequently triggers CORS errors.

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January 29, 2026
What Is Blob Mounting? Making Cloud Storage Feel Like a Local Folder
Alicia Gopin · 3 min read
As cloud computing has grown, so has the need to work with massive amounts of data stored outside traditional file systems. Services like Azure Blob Storage, Amazon S3, and Google Cloud Storage are designed to store enormous volumes of unstructured data—images, videos, logs, backups, and datasets. While these platforms are powerful and scalable, they’re accessed through APIs rather than normal folders. This is where blob mounting comes in. Blob mounting bridges the gap between object storage and everyday file-based workflows by making cloud blobs appear as if they were part of your local filesystem.
January 29, 2026
How Do You Build a Search Engine?
Dustin Collins · 3 min read
Search engines look simple from the outside: you type a query and get results. Building one is really a sequence of practical systems—data collection, text processing, indexing, ranking, and serving—stitched together with careful engineering. This article walks through the major steps and design choices for creating a working search engine, from a basic prototype to something you can grow over time.
January 28, 2026
What Is the grep Command?
Elise Taylor · 3 min read
Programmers often need to search through piles of text: log files, source code, configuration files, and command output. Doing that manually is slow and error-prone. The `grep` command solves this problem by scanning text and printing the lines that match a pattern. It’s one of the most practical tools you can learn if you work on Unix-like systems such as Linux and macOS, and it’s widely available in development environments.
January 27, 2026
What Does “Traversing” Mean in JavaScript?
Dustin Collins · 3 min read
If you’re learning web development, you’ve probably come across the term “traversing in JavaScript.” But what does traversing actually mean? Traversing in JavaScript means moving through elements or data structures step by step in order to access, read, or manipulate them. It’s most commonly used when working with the **DOM (Document Object Model), but it also applies to **arrays, objects, and tree-like structures.
January 26, 2026
Under the Hood: The Architecture of Search Auto-Completion
Annie Hayes · 3 min read
Auto-suggest (or Typeahead) is arguably one of the most high-pressure components in a search stack. While the UI feels simple, the backend is a distributed system constrained by strict latency requirements. It must ingest petabytes of log data, index it, and serve predictions in under 100 milliseconds to keep up with a user’s typing speed.
January 25, 2026
How do you clean snow fast?
Melissa Olson · 3 min read
Snow cleanup in front of the house can feel endless, especially when the plow leaves a heavy ridge just as you finish. A few smart habits, the right tools, and good timing can cut the work down and keep walkways safer.
January 24, 2026
How do I search code with grep?
Melissa Olson · 3 min read
Searching through a codebase can feel slow when you rely only on your editor’s global search. `grep` gives you a direct, script-friendly way to find patterns across files and folders from the terminal. It’s quick, flexible, and works well for everything from spotting function calls to hunting down configuration values.
January 23, 2026
Why JavaScript Has Floating-Point Precision Issues (and How to Fix Them)
Aria Singh · 3 min read
Have you ever written a perfectly reasonable line of JavaScript like 0.1 + 0.2 and gotten back 0.30000000000000004? It feels almost mocking—how can a language built for the modern web fail at such basic math? The truth is, JavaScript isn’t bad at math at all. It’s extremely precise. The surprise comes from what kind of math it’s doing. Under the hood, JavaScript uses the same binary floating-point system found in most programming languages and even tools like Excel. And that system, while powerful, was never designed to represent everyday decimal numbers cleanly.
January 22, 2026
How Software Builds Detect and Report Compilation Failures
Dustin Collins · 3 min read
Modern software builds are automated pipelines that scan code, transform files, connect dependencies, and produce deployable output. When something goes wrong, the build system halts and reports errors collected during those steps. A familiar example is running npm run build, which often ends with a clear “Failed to compile” message when the toolchain encounters blocking issues.
January 21, 2026
Inside the Loop: The Daily Work of an Algorithm Engineer
Alicia Gopin · 3 min read
An algorithm engineer in a large technology company spends most of their time doing grounded, practical work: reading logs, debugging visualizations, writing small, targeted code changes, and running controlled experiments to see whether those changes actually improve system behavior.
January 20, 2026
What Is Known About NASA's Artemis II Moon Mission?
Dustin Collins · 3 min read
NASA's Artemis II mission marks a key step in returning humans to the Moon. This crewed flight will test systems for future lunar landings and is currently in its final preparation stages on the launch pad.
January 20, 2026
What Does Labelled Data Look Like?
Dustin Collins · 3 min read
Labelled data forms the backbone of supervised machine learning. This article explains how labelled data appears in real projects and shows practical examples across several data types.
January 19, 2026
What Software Do Engineers Actually Use to Design Modern Chips?
Emily Henderson · 3 min read
Chip design relies on a large set of specialized software tools, usually grouped under the term EDA (Electronic Design Automation). These tools help engineers turn an idea—like a CPU, GPU, modem, or power controller—into manufacturable layouts made of millions to billions of transistors. Because chip creation spans many steps, no single program does everything; teams combine tools for design entry, verification, physical implementation, and signoff.
January 18, 2026
How Does a Transmitter Turn Data Into Light?
Jessy Chan · 3 min read
Light-based transmitters are the workhorses of fiber-optic communication. They take electrical data from a device and convert it into carefully controlled flashes of light that can travel long distances through optical fiber with low loss and low interference. This article explains the main stages of that conversion, from bits to photons, and what must go right for the link to perform well.
January 17, 2026
What Is a Printed Circuit Board?
Katherine Holland · 3 min read
Printed circuit boards (PCBs) are the physical platforms that hold and connect electronic parts. They appear in everyday products like phones, cars, medical devices, appliances, and industrial machines. Without PCBs, most electronics would be bulkier, less reliable, and harder to manufacture consistently.
January 16, 2026
What Is Reed–Solomon Error Correction?
Katherine Holland · 3 min read
When you scan a scratched CD, download a file over a weak signal, or read a QR code with part of it missing, something remarkable often happens: the data still comes back perfectly.One of the main reasons this works is a technique called Reed–Solomon error correction. Reed–Solomon (RS) codes don’t just detect errors. They are designed to reconstruct lost information, even when entire chunks are wrong or missing.
January 16, 2026
What Are Top LLM Data Sources for 2026
Billy Ewing · 3 min read
LLM training data is the fuel for your AI engine, and the quality of that fuel determines whether your model is a hallucinating jalopy or a high-performance reasoning machine. In 2025 and 2026, the landscape has shifted from scraping everything to curating the best. Here is a guide on where to find the high-quality data needed to train your own LLMs today.
January 15, 2026
How does a QR code work?
Dustin Collins · 3 min read
QR codes look like simple black-and-white squares, yet they carry structured data that a camera can decode in a fraction of a second. When you point your phone at a QR code, the camera captures an image and software interprets the pattern into text, a URL, Wi‑Fi credentials, payment details, or other data. The process can feel “visual,” but it is mostly computational pattern recognition rather than human-like visual cognition.
January 14, 2026
Is a Database a Type of Software?
Annie Hayes · 3 min read
People often say “the database is down” or “install the database,” which can make the term sound like a single thing. In practice, “database” can mean different parts of a data system. Whether a database is software depends on which meaning you are using.
January 13, 2026
Siri’s New Brain: Apple Brings Google Gemini Into the Core
Emily Henderson · 3 min read
Apple has confirmed a multi‑year agreement with Google to use Gemini AI models as a foundation for a revamped Siri and broader Apple Intelligence features expected later in 2026. The partnership positions Gemini as a deep, system-level capability rather than a simple add‑on chatbot integration.
January 12, 2026
What Is MCP and How It Works
Lillian Kim · 3 min read
The Model Context Protocol (MCP) is a standard way for large language models (LLMs) to interact with external tools and real systems. An MCP server is the component that actually exposes those tools and executes real-world actions. Rather than speaking in abstract terms, this article shows exactly what is exchanged between an LLM application and an MCP server, and how the loop between them works in practice.
January 11, 2026
How does fiber optic cable work?
Jessy Chan · 3 min read
Fiber optic cable carries data as light rather than electrical signals. That simple change is why fiber can move enormous amounts of information over long distances with low loss and high reliability. Instead of pushing electrons through metal, fiber guides pulses of light through a thin strand of glass or plastic, keeping the signal clean and stable even across many kilometers.
January 10, 2026
Which free APIs provide real-time weather data?
Nina Kimes · 3 min read
Real-time weather data is useful for dashboards, travel tools, farming alerts, event planning, and IoT projects. Several providers offer free tiers that can deliver current conditions, forecasts, and sometimes alerts—often with rate limits or attribution requirements.