captcha

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Android: WebView loadDataWithBaseURL does not display captcha image

I am trying to display a captcha jpeg image (which is generated dynamically by a Java servlet) in my application\'s WebView, however, it will sometimes display a blue question mark instead of the capt[详细]

2023-04-01 02:53 分类：问答
ImageURL doesn't work inside Update Panel

I am writing a captcha authentication program in ASP.N开发者_Go百科ET C#. The problem i face is that the image gets refreshed on entering wrong value during a postback; but same image doesn\'t get ref[详细]

2023-03-31 20:34 分类：问答
Django - problem with django-simple-captcha

I have an issue about http://code.google.com/p/django-simple-captcha/ project. I\'ve follow the procedure to install captcha, the form works but the browser don\'t load the image.[详细]

2023-03-31 08:30 分类：问答
How to avoid repeated post submissions?

I have a for开发者_Python百科m that allows users to paste input, like on StackOverflow. But if users know the format I send to the server, they can keep sending requests to me. How can I ensure it is[详细]

2023-03-30 23:54 分类：问答
Customize cPanel login with AdsCaptcha

I am trying to customize my cPanel login to require a captcha (AdsCaptcha to be exact.) The way I have it setup now is that the user sees the captcha first (in an iframe) and once they successfully[详细]

2023-03-30 10:44 分类：问答
Detect if user is human without captcha or useragent

I\'ve a website where I\'m providing email encryption to users and I\'m trying to figure out if there\'s a way to detect if a user is human or a bot.[详细]

2023-03-30 02:26 分类：问答
Handling captcha challenge inside a jQuery.ajax script

This jQuery calls a script that scrapes a page and returns a json array back to the jQuery. However, in certain cases, the cURL script results in a redirect to a captcha challenge page (see the cURL i[详细]

2023-03-28 07:58 分类：问答
How to get the captcha when doing a webrequest?

I\'m letting my users register an email account, the users just fills in all information in my program and my program will fill the fields. Well not really it makes a POST request with the correct pos[详细]

2023-03-27 05:07 分类：问答
Zend captcha Image generates blank

The image captcha randomly displays a blank captch. Roughly 4 out of 10 attempts. I have already discovered the problem and a post on the zend forum suggest the only fix is开发者_如何学JAVA to edit[详细]

2023-03-26 21:30 分类：问答
adding a captcha to a message box in drupal

I have added a message box to a drupal site.I got that massage box from this http://mootools.net/forge/p/message_class url. it is a mootools message bo开发者_运维问答x.I want to add a captcha to the e[详细]

2023-03-26 19:54 分类：问答