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上线当天App就崩了，才发问题是手机网络超时没处理——用App Inventor 2的W...
...发现两个隐蔽问题：
坑一：JSON解析报错。 API偶尔返回HTML格式的错误页面（比如网关502），直接丢给用字典解码JSON文本会触发Screen的错误事件。解决方案是在解析前加一个判断：检查响应内容是否以{开头。
坑二：Cookie丢...
How to go up a level in the src path of a URL in HTML?
...rectory (e.g. ../images/sth.png) work.
But!
When you load (in Chrome!) a HTML document from local filesystem you cannot access directories above current directory. I.e. you cannot access ../something/something.sth and changing relative path to absolute or anything else won't help.
...
How can I rotate an HTML 90 degrees?
...ostfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C...
Clear the cache in JavaScript
...
Wow, thanks! This works well for an HTML5 Application Cache loaded from a cache.manifest file as well. I had an old manifest that wasn't being removed from memory, so one browser that had it cached just wouldn't show newer files. I typed this in the javascrip...
How can I clear an HTML file input with JavaScript?
I want to clear the file input in my form.
18 Answers
18
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Can I have multiple background images using CSS?
... For IE8 - IE6, you can use PIE.js. webdesign.tutsplus.com/tutorials/htmlcss-tutorials/…
– Aleš Kotnik
Mar 28 '13 at 13:15
1
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Prevent “overscrolling” of web page
...or me. The only way I got it working while still being able to scroll is:
html {
overflow: hidden;
height: 100%;
}
body {
height: 100%;
overflow: auto;
}
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Prevent scroll-bar from adding-up to the Width of page on Chrome
I have a small issue trying to keep my .html pages at a consistent width on Chrome,
For example I have a page (1) with lots of contents that overflows the viewport's (right word?) height, so there's a vertical scroll-bar on that page (1). On page (2) i have the same layout (menus, divs,...etc) but l...
ActionBar text color
...ell with any flavor of ActionBar (Sherlock, Compat, and Native):
Just use html to set the title, and specify the text color. For example, to set the ActionBar text color to red, simply do this:
getActionBar()/* or getSupportActionBar() */.setTitle(Html.fromHtml("<font color=\"red\">" + getSt...
Java Embedded Databases Comparison [closed]
... of H2 has put up a nice performance evaluation:
http://www.h2database.com/html/performance.html
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