![]() ![]() By the time a request is made for one of those, the service worker is already up and running. Navigation preloads don’t apply to requests made by a web page for things like images, style sheets, and scripts. Navigation preloads-like the name suggests-are only initiated when someone navigates to a URL on your site, either by following a link, or a bookmark, or by typing a URL directly into a browser. The service worker activates while simultaneously requesting the file.That’s where navigation preloads come in. It would be better if the service worker could boot up and still be requesting the page at the same time, like it would do if no service worker were present. It’s not a massive performance hit, but it’s still a bit annoying. The service worker does something with the response.The only difference is that there’s been a slight delay because the service worker had to boot up first. If those instructions say “fetch the page from the network”, then you’re basically telling the browser to do what it would’ve done anyway if there were no service worker installed. If someone makes a return visit to your site, and the service worker you installed on their machine isn’t active yet, the service worker boots up, and then executes its instructions. It’s relatively recent, so it isn’t supported in every browser, but it’s still well worth using. There’s a feature in service workers called navigation preloads. Video talk conference presentation design systems patterns libraries components grammar rules flexibility optimisation organisations governance Thursday, August 1st, 2019 That’s why broad principles, just enough governance, and directional examples are far superior to locked-down cookie cutters. The more strict the system, the less able you are to change it. It’s very difficult to move back into design because the results of the system are in the wild. ![]() But in almost every instance I can think of, once you move from design to manufacturing the horse has bolted. It’s true many design systems are the blueprints for manufacturing and large scale application. Component-focussed design is siloed thinking.Continual design improvement and delivery is a lie.Design systems uncover organisational disfunction.Current design systems thinking limits free, playful expression.The video of a talk in which Mark discusses pace layers, dogs, and design systems. Speed performance computation ux dx experience optimisation software development programming code coding Tuesday, August 3rd, 2021 ![]() We would do well to heed Craig’s observations on Fast Software, the Best Software. Why is that?īecause we prioritise the developer experience over the user experience, that’s why:Īlthough our job is ostensibly to create programs that let users do stuff with their computers, we place a greater emphasis on the development process and dev-oriented concerns than on the final user product. Software is laggy and sluggish - and the situation shows little signs of improvement. This era of incredibly fast hardware is also the era of programs that take tens of seconds to start from an SSD or NVMe disk of bloated web applications that take many seconds to show a simple list, even on a broadband connection of programs that process data at a thousandth of the speed we should expect. Making Reasonable Use of Computer Resources
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