[RFC 2616 requires an absolute URI in the `Location`][1], but that standard has been replaced, since June 2014. The relevant specification is now RFC 7231. The [relevant section][2] of the new standard says:

&gt;   Location = URI-reference

&gt;   The field value consists of a single URI-reference.  When it has the
   form of a relative reference ([RFC3986], Section 4.2), the final
   value is computed by resolving it against the effective request URI
   ([RFC3986], Section 5).

So a relative URI **is now permitted**. The [_effective request URI_][3] is the same as the request URI in most cases.


  [1]: https://www.rfc-editor.org/rfc/rfc2616#section-14.30
  [2]: https://www.rfc-editor.org/rfc/rfc7231#section-7.1.2
  [3]: https://www.rfc-editor.org/rfc/rfc7230#section-5.5

Relative URLs are valid.

There is a bug in RFC 2616. See &lt;http://greenbytes.de/tech/webdav/draft-ietf-httpbis-p2-semantics-17.html#rfc.section.9.5&gt;.

I am trying to get an collection of objects out of a database and pass it to another process that is not connected to the database.  My code looks like the one below but I keep getting:

    sqlalchemy.exc.UnboundExecutionError: Instance &lt;MyClass at 0x8db7fec&gt; is not bound to a Session; attribute refresh operation cannot proceed

When I try to look at the elements of my list outside of the `get_list()` method.

    def get_list (obj):
        sesson = Session()
        lst = session.query(MyClass).all()
        session.close()
        return lst

However, if I use this:

    def get_list_bis (obj)
        session = Session()
        return session.query(MyClass).all()

I am able to use the elements but worry about the state of the session since it was not closed.  

What am I missing here?

SQLAlchemy, get object not bound to a Session

I have an `IBAction` that I have connected to a `UITextField` element in Interface Builder. (Firing on &quot;value changed&quot; event)

I also have a `UISlider` that updates the TextField element automatically when it&#39;s value gets adjusted.

When I run my app, the TextField does get updated when I adjust the slider, but the &quot;value changed&quot; event does not fire when this happens. The value changed event also does not fire when I edit the TextField by hand as well. (Although using the Did Editing End trigger does cause it to fire).

My question is, how can I get the value changed trigger to fire for both a programmatic update of the TextField as well as when the user adjusts the value.

UITextField &quot;value changed&quot; not firing when field is updated

Based on the RFC it seems like the Location field in an HTTP response for a 302 should be absolute.
https://www.rfc-editor.org/rfc/rfc2616#section-14.30

If this statement is correct, do browsers honor this - or do they allow relative paths?

Is a 302 redirect to relative URL valid, or invalid?

<p>Based on the RFC it seems like the Location field in an HTTP response for a 302 should be absolute.
<a href="https://www.rfc-editor.org/rfc/rfc2616#section-14.30" target="_blank" rel="noopener noreferrer">https://www.rfc-editor.org/rfc/rfc2616#section-14.30</a></p>
<p>If this statement is correct, do browsers honor this - or do they allow relative paths?</p>


Is it possible to show me a sample http session with range requests.
I mean what would be the request and response headers?

Sample http range request session

The [documentation][1] doesn&#39;t seem to specify exactly what is meant by &#39;success&#39; in jQuery.ajax.  Is it any 2xx code?  Only 200?


  [1]: http://api.jquery.com/jQuery.ajax/

What HTTP status codes count as success in jQuery.ajax?

What is difference between HTTP and HTTPS header? 

 1. What are benefits of using HTTPS over HTTP? 
 2. What settings  needs to be done for making website HTTPS?
 3. Can we use HTTPS for only login purpose and then onwords HTTP?
 4. Is there any threat present in HTTPS?
 5. Is processing time required for HTTPS is greater than HTTP?
 6. Does HTTPS cost more than HTTP?

Difference between http and https

I need to authenticate a client when he sends a request to an API. The client has an API-token and I was thinking about using the standard `Authorization` header for sending the token to the server.

Normally this header is used for `Basic` and `Digest` authentication. But I don&#39;t know if I&#39;m allowed to customize the value of this header and use a custom authentication scheme, e.g:

    Authorization: Token 1af538baa9045a84c0e889f672baf83ff24

Would you recommend this or not? Or is there a better approach for sending the token?

Customize the Authorization HTTP header

I have an application that sends messages to users. In a post request a XML string is transferred that consists of all the users that should receive that particular message. If any of the users in the list do not exist I give the list of missing users back to the client for further evaluation. 

Now I&#39;m asking myself what would be the proper status code for the application saying that the request was accepted but there were things that couldn&#39;t be done. 

The problem would be avoided if it weren&#39;t allowed to include missing users in the list. Then the sending attempt would just get an 4xx error. But there is no point in forming the API this way.
On the other hand I could consider the error condition to be purely application specific. But sending a 200 just does not feel right. And it would be nice to give the client a hint when to look deeply in the error response. e.g. to avoid sending messages to that users over and over

HTTP status code for a partial successful request

While working with Valgrind tool, i need to log the details produced by valgrind tool. How can I accomplish that? I tried something like,


     valgrind a.out | test

and

     valgrind a.out &gt; test

It gave just the program&#39;s output and not the valgrind memory error,leak information. Even i am getting like this if the program requires no user interaction (i.e. giving input). If the program need user input even that thing itself won&#39;t work. 

How can I do this?


How to redirect Valgrind&#39;s output to a file?

I&#39;ve struggled with this for some time and am definitely doing something wrong.  

I have apache server and a JBoss server on the same machine.  I&#39;d like to redirect traffic for mydomain.com to JBoss localhost:8080/example.  The DNS is currently setup for mydomain.com and it will go straight to port 80 when entered into the browser.  

My question is how do I redirect to a different port when a certain domain name comes to apache (in this case, &quot;mydomain.com&quot;)?


    &lt;VirtualHost ip.addr.is.here&gt; 
      ProxyPreserveHost On
      ProxyRequests Off
      ServerName mydomain.com
      ProxyPass http://mydomain.com http://localhost:8080/example
      ProxyPassReverse http://mydomain.com http://localhost:8080/example
    &lt;/VirtualHost&gt; 


**UPDATED w/ Suggestions**
- Still not forwarding to port 8080

    &lt;VirtualHost *:80&gt; 
      ProxyPreserveHost On
      ProxyRequests Off
      ServerName mydomain.com
      ServerAlias www.mydomain.com
      ProxyPass http://mydomain.com http://localhost:8080/example
      ProxyPassReverse http://mydomain.com http://localhost:8080/example
    &lt;/VirtualHost&gt; 


Apache redirect to another port

I am trying to create a middleware for Express.js to redirect all non-secure (port 80) traffic to the secured SSL port (443).
Unfortunately there is no information in an Express.js request that lets you determine if the request comes over http or https.

One solution would be to redirect **every** request but this is not an option for me.

Notes: 

1. There is no possibility to handle it with Apache or something else. It **has** to be done in node.

2. Only **one** server can be fired up in the application.

How would you solve that?

How to force SSL / https in Express.js

I have one method whose **return type is `void`** and it prints directly on console.

However I need that output in a String so that I can work on it.

As I can&#39;t make any changes to the method with return type `void` I have to redirect that output to a String.

How can I redirect it in Java?

Redirect console output to string in Java

Here&#39;s a Github repository of mine: https://github.com/n1k0/casperjs

There&#39;s a `gh-pages` branch to hold the project documentation, which is basically the project website: https://github.com/n1k0/casperjs/tree/gh-pages

This branch setups the documentation site at http://n1k0.github.com/casperjs/ — hurray.

In the meanwhile, I&#39;ve bough the `casperjs.org` domain to get this website available through it, so I put a `CNAME` file as [recommended in the docs](http://pages.github.com/#custom_domains): https://github.com/n1k0/casperjs/blob/gh-pages/CNAME — in their example, the operation is supposed to *create redirects from www.example.com and charlie.github.com to example.com*…

While the website now points to http://casperjs.org/, there&#39;s no 301 redirect from http://n1k0.github.com/casperjs/ (the old site url) to the new domain name.

Any idea how to setup such a redirect, if it&#39;s even possible? Is it a bug? If it is, where should I open an issue?


Content Type	Original Author	Original Content on Stackoverflow
Question	GeorgeU	View Question on Stackoverflow
Solution 1 - Http	Raedwald	View Answer on Stackoverflow
Solution 2 - Http	Julian Reschke	View Answer on Stackoverflow

Is a 302 redirect to relative URL valid, or invalid?

Http Problem Overview

Http Solutions

Solution 1 - Http

Solution 2 - Http

UITextField "value changed" not firing when field is updated

SQLAlchemy, get object not bound to a Session

Attributions