HTML5 is the 5th revision of the HTML language created in 1990 for structuring and presenting content on the Internet, and an attempt to improve support for modern multimedia elements.

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61 views

Showing a “context”-like menu in a span

It is about the MELT monitor (an alpha-stage GPLv3 free software, see also here). FWIW, I am now (feb 09, 2016) at commit 63632a7cd81471... I only care about Linux & recent Firefox (e.g. 44) or ...
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1answer
65 views

Concept to differentiate between html tags and angle brackets

I have an issue with a client's requirement that wants to import a string of html text within a csv document. For example, a sanitized version of one import line: ...
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0answers
39 views

How is FormData actually handled by a server?

I am using an embedded system with a web server. I really have no way to dig deep into the webserver and see how it works, so I am asking a more general question: How do servers or back-end scripts ...
4
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3answers
374 views

Is HTML5 XHTML 1.0 compliant?

For a school assignment, I wrote up a web-page in HTML5. After looking over the assignment's requirements again though, I found the line: • a minimum of three HTML pages complying with at least ...
2
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1answer
167 views

why are iframe-s so useful in HTML5 WYSIWIG applications?

<iframe> elements are documented as The HTML Inline Frame Element (<iframe>) represents a nested browsing context, effectively embedding another HTML page into the current page. ...
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1answer
229 views

Why HTML5 got rid of Rich Desktop applications? [closed]

I recently noticed that Rich desktop applications (I define it as an application running inside a virtual machine embded in a web browser, based on tools like Java Web Start, Adobe Flash or Unity web ...
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0answers
54 views

Advice on streaming architecture [closed]

I want to be able to stream my desktop to 1 other person (and in the future to possibly more people). The stream should be watchable from a browser or a mobile app (iOS, Android, Windows Phone) ...
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0answers
63 views

Create 2D drawing with touch screen that also works in IE

I have a page the allows a user to create a signature using a touch screen or mouse. The touch screen works fine in Chrome but not in IE. Most of the time IE does not 'detect' that I am using a touch ...
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3answers
259 views

Multiple Canvas in the Browser — How to Proceed?

Here's something I wrote ages ago as Java applet. I want to convert it into JavaScript and run in html5 canvas in the browser. From what I can see, canvas makes the most sense here. (SVG / DIV ...
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2answers
95 views

Is there an algorithm to avoid getting in hundreds of datapoints from API to represent a bar graph?

I am showing a graph on HTML5 canvas using the flot charting library for a between a start date and an end date. It's fine as long as the period is less than a year or so but if the user selects a big ...
9
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2answers
615 views

Is automatically generating passwords during registration a good idea?

I'm developing a registration system for a project I'm working on. Since users tend not to sign up if the process is too long, I've thought to require (at least initially) just their email, where I ...
1
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1answer
260 views

Clear JQuery Listeners Before Ajax Load of Similar Data

I have a tree structure on the left side of my page from which the user can drill down and select items. Each branch has similar items. When clicking a leaf node, I make a JQuery .load(...) call that ...
2
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2answers
116 views

Crypto hash in 'a href'?

It seems to me that it would be pretty useful to be able to indicate an expected crypto hash value in file downloads especially since so many application and data downloads rely on mirrored hosting. ...
2
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1answer
257 views

Porting Silverligtht application to web application with Asp.net and HTML 5

I work as internal software developer. We used Silverlight to build our application, but we have been asked to start considering their replacement. Currently our set-up is: Silverlight application ...
1
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2answers
412 views

Semantics of heading levels in multiple sections in HTML5

I'm never quite sure what is the best, most semantic way to handle heading levels in HTML5 markup, when you have multiple sections. On one hand it makes sense to have an H1 heading as a title of a ...
0
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2answers
599 views

Why html entity names for characters like ¥ € ¢ © ®

It make sense to use entity names for describing <a> as per shown below code. <!doctype html> <html> <head> <title> My First Webpage</title> ...
4
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1answer
210 views

Does HTML 5 undercut the need for a full-featured Javascript framework? [closed]

We're redesigning a website. Right now it uses Dojo, a large (and complex) Javascript framework. One person insists that we need Dojo because of things like (random examples) client-side ...
0
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0answers
286 views

Reason why client-side JavaScript does not allow access to POST/PUT/etc contents

Is there any theoretical reason why client-side JavaScript could not be spec'd to allow for direct access to POST or PUT contents without need for a server language to write it into client-side ...
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0answers
84 views

Web components and performance

I am having trouble learning about the impact of web components and shadow DOM on the browser, specifically related to repaint. I remember reading at one point that the shadow DOM nodes have ...
0
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1answer
60 views

What is the HTML 4 DTD role in HTML5

All, I know there are three types of DTD for HTML 4.01 (strict, transitional, and frameset). And I knew the DTD defines the syntax of markup constructs and the document structure with a list of legal ...
0
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1answer
171 views

Understand SGML and HTML

When I read the HTML 4 Specification. The document says : Each markup language defined in SGML is called an SGML application. An SGML application is generally characterized by: An SGML ...
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1answer
227 views

Why use iFrames in a web application? [closed]

I am new at a company that has a saas web application, which uses iframes to load content from several different servers (all operated by us). Is there any known compelling reasons to use iFrames ...
1
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1answer
172 views

What's the best semantic html5 tag for an action menu

I want to create an action menu to trigger some actions on a single page application and I wonder what's the most appropriated html5 tag for this? I know the nav tag but it seems more suited for ...
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1answer
251 views

How do browsers handle URLs in HTML5 offline mode?

I just read the de facto standard for HTML5 offline/localStorage. It has me curious: if I build my web app to work regardless of whether or not there's an internet connection, and I use HTML5 ...
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3answers
93 views

Should I mark what blocks mean in data-* attributes?

I was writing a webpage today with a comment after the start of every major section. Instead of using a comment, which comes with the bulgy <!-- --> syntax, could I instead put this in a data-* ...
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1answer
107 views

How does contenteditable work?

I recently came across an article where if you enter data:text/html,%20<html contenteditable> into the address bar of a browser that supports HTML5, you can type in the window. I managed to ...
0
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1answer
171 views

What is meant by an HTML5 application? [closed]

Since HTML5 is still only a markup language, what is meant when people say "HTML5 application"? Please explain.
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2answers
209 views

Old Browsers and Polyfills

Polyfilling, when is it too much? I've summed up this question into one sentance. Is it practical to polyfill all of the IE8 deficiencies with one solid javascript file, as in, would there be any ...
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2answers
179 views

Should the check correctness of a time constrained puzzle game application be done on the server side?

I am working on an application where a user has to complete a puzzle and check within a given time limit. This is an HTML5 based game, I can't keep the solution on the client side. but I also want ...
8
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1answer
8k views

Suggested setup for angularJS development in Visual Studio 2013 [closed]

I am starting with AngularJS. The back end will be Web API (which is new to me as well) and I'd like to use just one IDE, so I'm trying to figure out how to setup a project in Visual Studio 2013 for ...
8
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2answers
2k views

Javascript MVC application design (canvas)

I'm having difficulty grasping how to structure/architect a canvas application using an MVC like approach in Javascript. UI will be fairly fluid and animated, the games fairly simplistic but with ...
0
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1answer
191 views

Should we use any JS framework which makes HTML as scripting language [closed]

After studying HTML 5, I learnt that HTML is purely for defining semantics of data. And it has provided various tag for each purpose. Although we can create our own tags, can provide styling and it ...
11
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7answers
2k views

Why do we have to use divs?

This morning, as I was writing some html and haml, it occurred to me that the way divs are used is ridiculous. Why are divs not implied? Imagine if this: <div class="hero-img"> <img ...
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4answers
527 views

Why isn't there an html tag “field”?

There is a <fieldset> tag for a set of fields. Why isn't there a hierarchical child for fieldsets? <form> <fieldset> <legend>Thin Sandwich Options</legend> ...
2
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0answers
291 views

Are Calls to a WCF Service via JSONP Secure?

I am looking at developing a complete HTML5/JS mobile app that can be deployed to Android, iOS and Windows platforms. I am using DevExtreme tools to help me do that. I already have a WCF service that ...
0
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1answer
200 views

How to integrate and Program Avatar customization in HTML(5)? [closed]

I am making a Game in HTML5. In one part of it, I want the users to be able to customize the avatar they get by default. For sample, let me share a screenshot from Zombie Lane on Facebook (now this ...
0
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1answer
372 views

HTML markup vs programmatic JS

I've been thinking about the consequences of using programmatic JavaScript components versus HTML markup. For example I looked into the Enyo Framework, which has its power in composition. One can ...
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1answer
49 views

Load all templates at startup?

I am developing a jQuery mobile app. In this app, i often use Mustache.js templates in separate html files. Actually, every template is needed by the user, but my app loads a template (via GET method) ...
0
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1answer
87 views

Layering buttons when a number needs to be pressed more than once during an equation?

I am very new to HTML5 (and web coding in general), and I am trying to create an interactive calculator. I will try to explain this as clearly as I can. The basic idea is that the user will use ...
0
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1answer
895 views

Is possible to create and download a video file via JavaScript, only on the client side?

Is possible to create and download a video file only on the client side? Suppose that we have an animated canvas like in this JSFIDDLE. Please see this snippet: ... var stop = false; ...
0
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1answer
5k views

Switching between mobile webapp version using Ionic Framework and Desktop web app version?

I own a web application that make use of Twitter Bootstrap 3. This eases the design of the mobile version since it brings some responsive features. However, I would like a really native-mobile aspect ...
1
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1answer
116 views

Transport information screens

I need to create an information service on trains to deliver live information. I am looking for some ways to go about this. There are already existing LCD monitors in many of the train wagons. They ...
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1answer
161 views

Fantasy: One Language/Standard supported by all devices? [closed]

No introduction or description needed. We all know how troublesome it is make different codes and test codes in different platforms and browsers such as IE, Firefox, Chrome, Android 2.3 onwards, iOS, ...
2
votes
1answer
287 views

Under what scenarios will an App's localStorage get cleared?

I am developing an Hybrid android app using HTML5 which will work completely offline. Today morning when I opened the app, I saw that all the data stored in localStorage was cleared. Under what ...
1
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3answers
522 views

Why are <section>, <header> and <footer> tags not used much when I see sites that are in HTML 5? [closed]

I've noticed that even when a websites front end is coded in HTML 5 as evidenced by the <!DOCTYPE html>, people rarely seem to use the new HTML 5 <section>, <header> and ...
1
vote
1answer
2k views

Can IndexedDB be used in offline hybrid android apps?

Can IndexedDB be used in offline hybrid android apps? I have tried the [example presented in this post,1 while it is working in my laptopn on Google Chrome, it is not working inside the WebView in my ...
41
votes
3answers
30k views

Why is Web SQL database deprecated?

I am making a hybrid Android app. At first I decided to use localStorage, after spending 2 days, I realized that it is very strange and so dropped it. Then, I picked up indexedDB, after spending ...
28
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1answer
11k views

How is localStorage different from indexedDB?

localStorage and indexedDB are used for offline storage of data in HTML5. What are their key differences and which one is preferable in what situations?
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3answers
811 views

How to approach multiple page form with just one save option

The screen shot shows the magento product upload page. The left nav allows you to switch to different options for the product. Basically each option in the left nav appears as a different page. ...
23
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5answers
2k views

Why is Internet Explorer the only browser to be referred to by version when talking about compatibility?

Whenever I read something or hear someone talking about HTML5, CSS and JavaScript support, they always refer to Internet Explorer with the version number such as Internet Explorer 6, and Internet ...