This example will tell you how to add HTTP response headers in Django source code. This example is based on Django Bootstrap3 Example, but you can also create a new Django project to run this example.
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When you browse any web page ( google.com, yahoo.com, bing.com ) in a modern web browser, if you inspect the request HTTP headers, you can find the cache-control : no-cache header, this header is always used in the HTTP response header. But why it is used in the HTTP request header, this article will tell you the
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When a web browser requests a web page from the original web server, the request may go through several intermediary proxy or CDN servers like the below picture. Each node in the chain ( includes both client browser, CDN proxy server, and original webserver ) can cache the requested web page resources follow their own
How Web Caching Works In CDN ( Proxy ) Chain Use Cache-Control Http Header Read More »
If you use Cloudflare as your website CDN server ( HTTP proxy server ), you must want to check whether your web page resources ( CSS, js, images, Html content ) have been cached by Cloudflare or not. Cloudflare adds an HTTP header CF-Cache-Status with various header values in the HTTP response to tell you
How To Verify If CloudFlare CDN Cached Your Website Html Content, CSS, Images, JS Files Read More »
When you develop a web application, you sometimes need to view HTTP headers or cookies values in a web browser to verify whether your code executes correctly or not. This example will tell you how to find and view the HTTP header value and cookies in both Google Chrome, Mozilla Firefox, and Microsoft internet explorer.
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Pass parameters via URL in Django is not as same as java or Php which use a question mark and key-value pairs ( for example http://127.0.0.1:8080/login.jsp?username=jerry&password=12345678). Django uses a more clear, readable, and SEO-friendly way to pass parameters in URL like http://127.0.0.1:8080/login/jerry/12345678. The first section after login is the username, and the section after jerry
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The Django Bootstrap3 Example article tells you how to develop a user, department, and employee management website using Django and bootstrap3. The example website provides a user, department, and employee list page. Now I want to add a link to the employee name on the employee list page. Then when the user clicks the employee
We have learned how to add many to many fields for Django models in the article How To Operate Foreign Key And Many To Many Field In Django Model. But when we display the many to many field values ( in this example is the Employee’s Department values ) in Django Html template page, we
How To Get Many To Many Model Field Values In Django View Read More »
In the previous article, we have told you how to add rich media output components ( audio, video, image, etc) in jupyter notebook. But all those widgets are not interactive. This article will show you an example of how to add a slide bar in jupyter notebook. When you slide the bar, it will change
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The package IPython.display provides a lot of classes for you to display rich media objects in the Jupyter notebook directly and immediately. Using classes in the IPython.display package, you can display audio (local or remote ), video(youtube or local ), image, local file links, Html data in the Jupyter notebook. This article will show you
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