Smashing Magazine

MARCH 9, 2020

Many websites may not bother to specify width s and height s on their <img> tags. Other browsers are also looking to support this with Firefox also getting this soon , and Safari hopefully not too much later. This also took care of the other chromium-based browsers (Edge, Opera and Brave, for example).

Website 125

Website Code Mobile Network 125

CSS Wizardry

NOVEMBER 9, 2018

The same waterfall occurs in Opera and Safari.). The same waterfall occurs in Opera and Safari.). Before: @import url(app.css); …gives: Missing quote marks in our `@import` URLs breaks Chrome’s Preload Scanner (N.B. After: @import url("app.css"); Adding quote marks to our `@import` URLs fixes Chrome’s Preload Scanner (N.B.

Network 278

Network Performance Media Cache 278

Smashing Magazine

MAY 6, 2019

According to the native lazy loading specification (still under development), if you want to lazy load images or iframes using the native lazy loading feature, you would just need to add the loading=lazy attribute on the related tag. <img The same attribute can be applied to iframes. A Little Third-Party Help. <img alt="A lazy image".

Website 103

Website Best Practices Media Open Source 103

Smashing Magazine

NOVEMBER 5, 2018

Internet Explorer and Safari are notable browsers without WebM support ( Large preview ). However, because the <video> tag supports multiple <source> files, we can serve WebM videos to browsers that support them while falling back to MP4 everywhere else. Replace Animated GIFs With Video In The Browser.

Performance 59

Performance Website C++ Open Source 59

Speed Curve

DECEMBER 19, 2018

What we see is that the HTML parser stops when it encounters a SCRIPT tag until that script is downloaded, parsed, and executed. Because the HTML parser stopped, all network traffic also stopped (because no other HTML tags were parsed to initiate HTTP requests). The solution to these problems is to load scripts asynchronously.

Internet 53

Internet Internet Website Traffic 53

CSS - Tricks

MAY 17, 2019

The group meets regularly to review third-party tags and work on improving our site’s performance. Since 2017, Safari prevents cross-site tracking by default, through a feature called Intelligent Tracking Prevention (ITP). We’ve started deferring all JavaScript (including our own) using the <script defer> attribute.

Performance 42

Performance Internet Internet Metrics 42

Smashing Magazine

JANUARY 11, 2021

web-vitals library can collect and send Core Web Vitals to Google Analytics, Google Tag Manager or any other analytics endpoint. In fact, the WebP saga has been nearing the end last year with Apple adding support for WebP in Safari 14. In Safari Technical Preview 118 already. Do we use responsive images for background images?

Performance 145

Performance Cache Media Metrics 145

Smashing Magazine

AUGUST 3, 2021

Browsers ignore invalid HTML tags and unsupported CSS properties. UIs should adapt to the functionality they can offer, whilst providing as much value to end-users as possible. Why Be Resilient. Resilience is intrinsic to the web. More after jump!

Network 145

Network Engineering Availability Monitoring 145

Tim Kadlec

APRIL 10, 2012

Test One: Image Tag. Safari (4+). Safari (4+). Safari 4.0. Safari 5.0+. Safari (4+). Safari 4.0+. First, any credit has to go to the awesome team at Cloud Four. Most of the tests were created by them for some testing they were doing. I just added some Javascript to automate them. On to the results!

Media 75

Media Mobile Testing Internet 75

Tim Kadlec

SEPTEMBER 10, 2008

The canvas element was originally implemented in Safari, and then became standardized in the HTML5 specification. and newer), Safari, or Opera (version 9 and newer). For example, in Safari, the canvas tag works a lot like the img tag…it doesn’t require a closing tag. Why It’s Cool.

Games 40

Games Google Website Technology 40

MachMetrics

JUNE 18, 2019

According to caniuse.com , Opera and Edge have recently added support to join Chrome and Firefox, with Safari the lone holdout. You can use.htaccess, or the <picture> HTML tag to offer multiple images to the browser, which will cycle through them and serve the first match. Many large company sites (Netflix, YouTube, Yahoo, etc.)

Speed 81

Speed Website Social Media Media 81

Smashing Magazine

OCTOBER 14, 2021

You can think of it as a CSS background equivalent to the HTML srcset attribute for img tags. Chromium-based browsers and Safari have supported it for some years now, Firefox followed just recently. Improving Image Performance With image-set(). Have you heard of image-set() already? Large preview ).

Games 144

Games Design Strategy Code 144

Smashing Magazine

APRIL 29, 2021

This is an empty element — it has no closing tag — requiring a minimum of one attribute to be helpful: src , the source. At the time of writing, Chrome and Safari present images and text together – synchronously – if possible. The Basics. To place an image on a web page, we use the <img> element.

Media 145

Media Network Metrics Mobile 145

Smashing Magazine

OCTOBER 6, 2021

Chrome, Edge, Firefox, and Safari also have a way to track the changes you’ve made and save them to make it easier for you to copy over any updates. The HTML has an indicator tag of scroll , noting that it has become a scrollable region, and main has an indicator tag of overflow because one of the paragraphs expands beyond its boundaries.

Design 145

Design Availability Mobile Website 145

Smashing Magazine

JANUARY 6, 2020

While you’re at it, you could also make use of the WebP format (supported in all modern browsers except Safari and iOS Safari) by serving WebP images with the <picture> element and a JPEG fallback (see Andreas Bovens' code snippet ) or by using content negotiation (using Accept headers). Still under consideration in Firefox.

Performance 145

Performance Cache Network Metrics 145

KeyCDN

FEBRUARY 14, 2019

MP4 Videos Since the HTML5 video tag gave browsers the ability to play videos without the need for external plugins, MP4 has become the preferred multimedia container format of most web developers. Like APNG, it is supported by most modern browsers except IE and Safari. Here are some alternatives to GIF to consider: 1.

Speed 50

Speed Website Latency Cache 50

KeyCDN

SEPTEMBER 20, 2018

DebugMe The DebugMe extension is compatible with most web browsers including Chrome, Safari, Internet Explorer, Microsoft Edge and Opera. You can also embed code in your application’s meta tags for built-in error tracking, and you may provide visitors an avenue to give feedback.

Strategy 67

Strategy Monitoring Website Google 67

Speed Curve

NOVEMBER 11, 2015

A quick note about browser compatibility: User Timing is available in most browsers except Safari. Here's sample code for capturing this custom metric: performance.mark("stylesheets done blocking"); The key to this snippet is making sure that it's placed below all the stylesheet LINK tags in the page. css might cause sheet2.css

Metrics 72

Metrics Website Innovation Speed 72

Testsigma

JUNE 19, 2020

Chrome, Firefox, Safari etc. All the plugins which are present in pom.xml stored in a central maven repository and it is present in the <dependency> tag. It can only automate test cases for a web application on a browser and is not usable for automating test cases for desktop or mobile applications. Java, Python, etc ). Selenium 3.

Testing Tools 60

Testing Tools Testing Open Source Java 60

Smashing Magazine

JANUARY 7, 2019

However, if you supply both the normal responsive images markup and the <meta> tag for Client Hints, then the browser will evaluate the responsive images markup and request the appropriate image source using the Client Hints HTTP headers. Unfortunately, client hints still have to gain some browser support. Not good enough?

Performance 103

Performance Cache Metrics Network 103

Smashing Magazine

OCTOBER 28, 2021

Cheerio allows us to select tags of an HTML document by using selectors: $("div"). Safari/537.36. To create the web scraper, we need to install a couple of dependencies in our project: Cheerio. This specific selector helps us pick all <div> elements on a page. Here’s what a user-agent header looks like: Mozilla/5.0

Website 115

Website Code Retail Best Practices 115

Smashing Magazine

SEPTEMBER 6, 2021

Apple Safari (version 14) : Behind a manual flag. Apple devices and Safari use QUIC_LOG_DIRECTORY instead. Thirdly, QUIC connections can survive users moving to a different network (called connection migration) by tagging each packet with a connection ID. Mozilla Firefox (version 89+) : Enabled by default.

Network 104

Network Servers Cache Traffic 104