HTTP Redirection

-
According to the HTTP specs, there are a number of HTTP codes used to redirect browser clients.
 
  • 301 Moved Permanently: Permanent redirect. Document has moved permanently, future requests to use the redirected URL instead. Response is cacheable. Modern browsers change the HTTP method to a GET with the exception of IE (which preserves HTTP HEAD, DELETE method).
  • 302 Found: Temporary redirect. To be superseded by 303 and 307. Response may be cached if headers allow for it. Most modern browsers treat this as 303 with the exception of IE (which treats it as 307).
  • 303 See Other: Request should be redirected to a GET regardless of the original request method. The response must not be cached. Supported by all modern browsers.
  • 307 Temporary Redirect: Temporary redirect. Request should be redirected to the redirected URL. The original request method is to be preserved and a POST request should be re-posted. Response may be cached if headers allow for it. Supported by all modern browsers except Opera 11.5. If the request method is non-idempotent (e.g. POST, PUT, DELETE), Firefox and Opera would prompt the user for confirmation that the form data would be resent to another location.
Tests on existing browser found here.
Some references: HTTP specs & here

Comments

Post a Comment

Popular posts from this blog

Understanding ITIL Service Management the UML way…

-
Image
I originally had a great deal of difficult reconciling the differences amongst ITIL Change Management, Incident Management, and Problem Management. Having researched on the subjects and understanding them better now, I’ve tried to put the concepts together using a UML class diagram to capture my understanding and to keep it imprinted. Similarly, I wanted to differentiate the various categories of changes (Standard, Emergency, Normal) using an easy to understand & self-explanatory manner – a UML Activity Diagram!
Read more

How to depict (Professional-Looking) Logical Network Diagrams in Astah

-
Image
I have always had to create (professional-looking) UML diagrams using Visio-like icons. You’ve got to admit that showing a bunch of boring UML boxes hardly interests anyone less technical (like anyone whose designation has the words “manager” or “director”). This is actually possible in Astah! I’ve created a template for future projects that allows me to produce logical network diagrams that look like the following: To create this diagram, you need to do the following: Assign various icons to stereotypes. I created the following for my use: Create a new UML Deployment Diagram Every element in the diagram is created as a Node The nodes are subsequently assigned the appropriate <<stereotype>>. E.g. Internet is <<internet>>, WebZone FW is <<firewall>>, Web LB is <<loadBalancer>> Ensure the “Icon Notation” is set to “Customized Icon” for each node Instead of the boring boxes, the corresponding icons automatically gets displayed!
Read more