browser

问题 Now, I don't have any problems with 301 redirects, but one person asked me for the way to undo cached 301 redirects for browsers and search engines, so I replied "by doing a 301 redirect back to the original url", at least thats what I thought was the solution, until I saw people mentioning that you can't do a 301 redirect back http://getluky.net/2010/12/14/301-redirects-cannot-be-undon/ http://www.velocityreviews.com/forums/t500058-undo-301-redirect.html this was a surprise and I don't know

问题 I am using 'xlwt' to write into Excel files as part of my project in Python. I also need to actually open the Excel spreadsheet for display and also close it. I found a function: import webbrowser webbrowser.open('C:/Users/300231823/Desktop/GUI/simplenew4.xls') This seems to open the .xls file. How do I close the file? I am completely new to programming, and I started using Python 3 weeks ago. 回答1: from win32com.client import Dispatch xl = Dispatch("Excel.Application") xl.Visible = True #

问题 (Related to Is there a secure Browser Cache? ): Do any of the implementations of HTML5 session storage write to disk ever? e.g. can I rely on having a "secure"/"private" cache that I know will not be able to persist beyond the browser session whether it times out is ended/logs out browser closes/crashes/power button on computer See HTML5 Browser Application Cache HTML5 sessionStorage 回答1: Safari uses SQLite, and probably other will follow suite with that solution. As for the standard it says:

问题 (Related to Is there a secure Browser Cache? ): Do any of the implementations of HTML5 session storage write to disk ever? e.g. can I rely on having a "secure"/"private" cache that I know will not be able to persist beyond the browser session whether it times out is ended/logs out browser closes/crashes/power button on computer See HTML5 Browser Application Cache HTML5 sessionStorage 回答1: Safari uses SQLite, and probably other will follow suite with that solution. As for the standard it says:

问题 example: Go to your Facebook wall, scroll the end of the page, Facebook will load more wall posts asynchronously . Or just click on an images in your wall post. The image dialog (with comments and larger image) is loading asynchronously as well. (You can see the GET requests with firebug). But by looking and the firefox tab, you see the loading indicator, just like when a postback occurs. I know this can be achieved by using an IFrame and changing its src. Just like what iGoogle does. But I'm

问题 example: Go to your Facebook wall, scroll the end of the page, Facebook will load more wall posts asynchronously . Or just click on an images in your wall post. The image dialog (with comments and larger image) is loading asynchronously as well. (You can see the GET requests with firebug). But by looking and the firefox tab, you see the loading indicator, just like when a postback occurs. I know this can be achieved by using an IFrame and changing its src. Just like what iGoogle does. But I'm

问题 Recently a friend decided not to close his tags or attributes in HTML because it's not required and he'll save some bandwidth and download time. I told him it's a bad idea and to be "better safe than sorry", however, I could only really find 2 resources on the issue: http://css-tricks.com/13286-problems-with-unquoted-attributes/ http://www.cs.tut.fi/~jkorpela/qattr.html #1 is good, but even as he said, they aren't really real world examples, which is why I went to #2, but they only really

问题 Recently a friend decided not to close his tags or attributes in HTML because it's not required and he'll save some bandwidth and download time. I told him it's a bad idea and to be "better safe than sorry", however, I could only really find 2 resources on the issue: http://css-tricks.com/13286-problems-with-unquoted-attributes/ http://www.cs.tut.fi/~jkorpela/qattr.html #1 is good, but even as he said, they aren't really real world examples, which is why I went to #2, but they only really

问题 This question already has answers here : Closed 9 years ago . Possible Duplicate: How do you disable browser Autocomplete on web form field / input tag? I am building my own local search UI element that gives local search suggestions as you type. The problem I am having is that when I focus on the html text input element my browser (Safari, but could happen in other browsers) displays its own text suggestions based on things that I've typed in the past. My guess is that this is dependent on

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 4 years ago . I'm looking for a hash implementation that is; secure (practically impossible to invert) fast (few ms) light (few KB) runs in the browser Ideally a SHA-256 implementation, since it is widely used and therefore widely tested against. 回答1: Doing some tests suggests that forge is the fastest SHA-256 JavaScript