Is there an efficient way to tell if a DOM element (in an HTML document) is currently visible (appears in the viewport)? (The question refers to Firefox.) 30 30 Now most browsers support getBoundingClientRect method, which has become the best practice. Using an old answer is very slow, not accurate and has several bugs. The … Read more
I want to reduce load times on my websites by moving all cookies into local storage since they seem to have the same functionality. Are there any pros/cons (especially performance-wise) in using local storage to replace cookie functionality except for the obvious compatibility issues? 9
I want to test some URLs in a web application I’m working on. For that I would like to manually create HTTP POST requests (meaning I can add whatever parameters I like). Is there any functionality in Chrome and/or Firefox that I’m missing? 1 17 I have been making a Chrome app called Postman for … Read more
What’s the difference if one web page starts with <!DOCTYPE html> <html> <head> <meta http-equiv=”X-UA-Compatible” content=”IE=edge”> and If page starts with <!DOCTYPE html> <html> <head> <!– without X-UA-Compatible meta –> If there is no difference, I suppose I can just ignore the X-UA-Compatible meta header, since I just want it to be rendered in most … Read more
I am modifying a site’s appearance (CSS modifications) but can’t see the result on Chrome because of annoying persistent cache. I tried Shift+refresh but it doesn’t work. How can I disable the cache temporarily or refresh the page in some way that I could see the changes? 3 33
How do you disable autocomplete in the major browsers for a specific input (or form field)? 9 94
What is the maximum length of a URL in different browsers? Does it differ among browsers? Is a maximum URL length part of the HTTP specification? 1 17 Short answer – de facto limit of 2000 characters If you keep URLs under 2000 characters, they’ll work in virtually any combination of client and server software. … Read more
Why do certain random strings produce colors when entered as background colors in HTML? For example, the following code produces a page with a red background across all browsers and platforms: <body bgcolor=”chucknorris”> test </body> On the other hand, the value chucknorr produces a yellow background! What’s going on here? 10 It’s a holdover from … Read more
I absolutely hate IE, specially versions 6, 7 and 8. When you are designing a wordpress theme, you have to style it twice, once for proper browsers and then for the IE ancients. The other big thing to remember, these ancients don’t have support for media queries. So to solve your problem, create a stylesheet … Read more
