iframe | 易学教程

detect iframe load error

阅读更多关于 detect iframe load error

问题 I am loading a user-selected page into an iframe using the src property. If the load fails, I would like to report the problem in terms that will make sense to the user. iframe does not, in general, support onerror according to http://www.w3schools.com/jsref/dom_obj_frame.asp. The page may come from the user's domain, not mine, so I cannot view the content of the iframe. I can set a timeout and cancel it from my onload handler if the load is successful, but it would need to be a long timeout

iframe without an src attribute

阅读更多关于 iframe without an src attribute

问题 I would like to create an <iframe> on the page, but then add the src later. If I make an iframe without an src attribute, then it loads the current page in some browsers. What is the correct value to set for the src so that it just loads a blank iframe? The answers I've seen are: about:blank javascript:false javascript:void(0) javascript:""; url to a blank page Is there a clear winner? If not, what are the tradeoffs? I'd like to not have mixed content warnings for HTTPS urls, nor any back

How to determine iFrame finished loading in UIWebView

阅读更多关于 How to determine iFrame finished loading in UIWebView

问题 In my app, I need a way to tell when my webview is finished loading. It is very easy to do that if content is html. However, my content source is javascript with iFrame inside, it will cause UIWebView finishedLoad method called several times. Is there anyway I can check to see if the iframe is finished loading? 回答1: The only foolproof method I've found is to listen to the three methods that say it's about to start loading, and that it finished loading (plus equivalent for "failed"), and to

HTML <frame> SRC-attribute - use html-code instead of URL

阅读更多关于 HTML SRC-attribute - use html-code instead of URL

问题 Is there a way to use pure html-code to display inside a frame instead of having to link to a specific URL/file? For example: NOT like this <iframe src="left.html" name="left"></iframe> but like this <iframe src="here goes the html code" name="thank you SO"></iframe> 回答1: maybe you could inject HTML into the iFrame/Frame like described in this article:Injecting HTML into an IFrame by Michael Mahemoff. Something like this: var content = "<html><body><b>Hello World!</b></body></html>"; var

Displaying a YouTube video with iframe full width of page [closed]

阅读更多关于 Displaying a YouTube video with iframe full width of page [closed]

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I've put a video in my site using an iframe from YouTube, while the iframe is full width ( 100% ) the video is very small (height) within the frame. How do I make it fit the width of the container? Code: <iframe width="100%" height="100%" src="https://www.youtube.com/embed/5m_ZUQTW13I" frameborder="0"

HTML5面试题

阅读更多关于 HTML5面试题

HTML语义化理解？用正确的标签做正确的事 html语义化让页面的内容结构化，结构更清晰，便于对浏览器、搜索引擎解析即使在没有样式css情况下可以是一种文档格式显示，并且是容易阅读的搜索引擎的爬虫也依赖于HTML标记来确定上下文和各个关键字的权重，利于SEO 是阅读源代码的人对网站更容易将网站分块，便于阅读维护理解 H5有哪些新特性？增强了图形渲染 (canvas) 影音 (video, audio) 数据存储 (sessionStorage,localStorage) 语义化更好的内容元素，比如 article、footer、header、nav、section 表单控件 calender、date、time、email、url、search; 新的技术：webworker(专用线程)、websocket通信、Geolocation地理定位如何处理H5新标签的兼容性？ IE8/IIE7/IE6 通过支持 document.createElement 方法产生的标签可以利用这一特性让这些浏览器支持H5 路蓝旗支持新标签后，还需要添加标签默认的样式当然最好的方式是直接使用成熟的框架、使用最多的是html5shiv框架： < ! -- [ if lt IE 9 ] > < script > src = "http://html5shim.googlecode.com

How to set up twitter's embedded timeline width in percentage (responsive/fluid design)

阅读更多关于 How to set up twitter's embedded timeline width in percentage (responsive/fluid design)

问题 I'm looking to set up twitter's embedded timeline, it's quite easy when you're having a fixed design, but that's not my case and I'm actually building a fluid and responsive design for a new website. My question is, how can I set up twitter's embedded timeline with a fluid width since its an iframe and you're supposed to set up the with in px in your twitter account ? Thanks :) 回答1: This seems to work for me: #twitter-widget-0 { width:100%; } where #twitter-widget-0 is the iframe it generates

How to set up twitter's embedded timeline width in percentage (responsive/fluid design)

阅读更多关于 How to set up twitter's embedded timeline width in percentage (responsive/fluid design)

What is the best way to lazy load doubleclick ads that use document.write?

阅读更多关于 What is the best way to lazy load doubleclick ads that use document.write?

问题 Ads requested via doubleclick often get served from an ad provider network that returns javascript that in turn performs document.write to place ads in the page. The use of document.write requires that the document be open, implying that the page hasn't reached document.complete. This gets in the way of deferring or lazy loading ad content. Putting such code at page bottom is helpful but doesn't do enough to lower all-important "page-loaded" time. Are "friendly iframes" the best we have? Is

How to get Webview iframe link to launch the browser?

阅读更多关于 How to get Webview iframe link to launch the browser?

问题 I'm using a WebView to display a page in which the html includes an iframe where src="xxxxx.php". This iframe loads as an ad image with an underlying link. If I click on that image (link), it tries to load the new page within original iframe (which doesn't show much in that little space). What I want to happen is clicking on the link to open the referred page in a new browser window, leaving my app as is. If I use the Android browser to display the original page and click on this iframe, it