There is no way for a page to specify HTTP request headers other than for requests made using XMLHttpRequest and fetch.

Can you elaborate on what you are trying to do?  

I don&#39;t believe it&#39;s possible to specify a request header via a link.  You can send GET parameters to the target site with the following notation:

    www.google.com?q=searchterm

The first GET parameter is separated from the URL by a question mark (?) after that each additional parameter should be separated with an ampersand (&amp;) like so:

    www.google.com?q=searchterm&amp;otherparam=value&amp;otherotherparam=value

I would like to apply a CSS file to a concrete DIV in my page. This is the page structure:

    &lt;link rel=&quot;stylesheet&quot; href=&quot;style.css&quot; /&gt;
    ...
    &lt;body&gt;
       &lt;div id=&quot;pagina-page&quot; data-role=&quot;page&quot;&gt;
       ...
       &lt;div id=&quot;applyCSS&quot;&gt;
          (all the elements here must follow a concrete CSS rules)
       &lt;/div&gt;
       ...
    &lt;/body&gt;

I tried to apply the rules of the CSS file editing it like this (the CSS file is so large):

&lt;!-- language: lang-css --&gt;

    #applyCSS * {     (For all the elements inside &quot;applyCSS&quot; DIV:)
        .ui-bar-a {
           ...
           ...
        }
        .ui-bar-a .ui-link-inherit {
           ...
        }
        ...
    }

But that solution doesn&#39;t work. So, how can I do that?


Applying CSS styles to all elements inside a DIV

In my sidekiq dashboard, I see on the left a box with the counters 

    Processed 168
    Failed 111
    Busy 0
    Scheduled 0
    Retries 0
    Enqueued 0

How do I reset them all to 0?




How do I reset my sidekiq counters?

I have a simple `href` link from some `html`

    &lt;a href=&quot;www.google.com&quot;&gt;Apparently you can find things here&lt;/a&gt; 

But I want to add a http request header to the request?

Is this possible.



Adding http request header to a a href link

I have a simple <code>href</code> link from some <code>html</code>
<pre><code class="hljs language-ini">&#x3C;a href="www.google.com">Apparently you can find things here&#x3C;/a> 
</code></pre>
But I want to add a http request header to the request?
Is this possible.

I want to get the selected value from a group of radio buttons. 

  Here&#39;s my HTML:
 
    &lt;div id=&quot;rates&quot;&gt;
      &lt;input type=&quot;radio&quot; id=&quot;r1&quot; name=&quot;rate&quot; value=&quot;Fixed Rate&quot;&gt; Fixed Rate
      &lt;input type=&quot;radio&quot; id=&quot;r2&quot; name=&quot;rate&quot; value=&quot;Variable Rate&quot;&gt; Variable Rate
      &lt;input type=&quot;radio&quot; id=&quot;r3&quot; name=&quot;rate&quot; value=&quot;Multi Rate&quot; checked=&quot;checked&quot;&gt; Multi Rate  
    &lt;/div&gt;

Here&#39;s my js:

    var rates = document.getElementById(&#39;rates&#39;).value;
	var rate_value;
	if(rates ==&#39;Fixed Rate&#39;){
		rate_value = document.getElementById(&#39;r1&#39;).value;
		
	}else if(rates ==&#39;Variable Rate&#39;){
		rate_value = document.getElementById(&#39;r2&#39;).value;
		
	}else if(rates ==&#39;Multi Rate&#39;){
		rate_value = document.getElementById(&#39;r3&#39;).value;
	}  

    document.getElementById(&#39;results&#39;).innerHTML = rate_value;

I keep getting undefined.

How to get value of selected radio button?

I&#39;m trying to figure out a way to pass a native object through javascript&#39;s event.dataTransfer for drag and drop. I&#39;m writing the front end editor portion of a CMS, and want users to be able to drag and drop elements (of many different types, ranging from files to images to snippets of HTML to just about anything). That&#39;s why I want to pass a real object, so I can attach data to it to specify things that will be necessary in order to know how to render it.

One workaround is to use jQuery&#39;s .data() to attach an object to something else on the page, and then simply pass the selector string in setData... but I don&#39;t particularly enjoy that hack.

This could also be solved with jQuery UI&#39;s draggable/droppable (and I&#39;m not totally opposed to using any libraries), but since the dropzone is in an iframe, this is a actually a documented bug in the latest jQuery UI (1.10.2). Also, I would strongly prefer to do it natively if possible. There are already enough libraries in this app.

Here&#39;s the problem: http://jsfiddle.net/AHnh8/
    
    var foo = {foo: &quot;foo&quot;, bar: &quot;bar&quot;};

    $dragme.on(&quot;dragstart&quot;, function(e) {
        e.originalEvent.dataTransfer.setData(&quot;foo&quot;, foo);
    });

    $dropzone.on(&quot;dragenter&quot;, function(e) { e.preventDefault(); });
    $dropzone.on(&quot;dragover&quot;, function(e) { e.preventDefault(); });
    $dropzone.on(&quot;drop&quot;, function(e) {
        console.log(e.originalEvent.dataTransfer.getData(&quot;foo&quot;)); // [Object object]
        console.log(typeof e.originalEvent.dataTransfer.getData(&quot;foo&quot;)); // string
    });


Now, after reading the specs, I totally understand why this fails. What I don&#39;t understand, is how to ultimately achieve what I want.

Thanks

Pass object through dataTransfer

Although the [size of localStorage](https://stackoverflow.com/questions/2989284) has been addressed in detail and there is a [online test for it](http://arty.name/localstorage.html), I was wondering what the maximum size of [sessionStorage](https://developer.mozilla.org/en-US/docs/DOM/Storage#sessionStorage) is for the common browsers?

How large is HTML5 session storage?

I want an optional line-breaking character that is always invisible that works with the `word-wrap: break-word;` CSS style.

Here are some specifics. My goal is to break apart long links in reasonable places. These characters are a good place to start: `-`, `.`, `_`, `/`, `\`. This is not a Rails-specific question, but I wanted to share some code I&#39;m using now:

    module ApplicationHelper
      def with_optional_line_breaks(text)
        text.gsub(%r{([-._/\\])}, &#39;\1&amp;shy;&#39;)
      end
    end

Here&#39;s the problem with the code above: when `&amp;shy;` takes effect (in a table with: `word-wrap: break-word;`), `&amp;shy;` gets displayed as `-`. I don&#39;t want to see the `-`; I want a line break without any character shown.




----------

Optional line-breaking HTML entity that is always invisible

I&#39;m looking to set a parent DIV as 70% of the full 100% screen height. I&#39;ve set the following CSS but it doesn&#39;t seem to do anything:

    body {
	font-family: &#39;Noto Sans&#39;, sans-serif;
	margin: 0 auto;
	height: 100%;
	width: 100%;
    }
    .header {
	height: 70%;
    }

For some reason it doesn&#39;t seem to be working though and the header isn&#39;t 70% of the screen size. Any advice?

DIV height set as percentage of screen?

Is the `Content-Length` header required for a HTTP/1.0 response? The HTTP spec mentions that it is required for the request, but doesn&#39;t mention anything about the response:

http://www.w3.org/Protocols/HTTP/1.0/draft-ietf-http-spec.html#Content-Length

&gt; A valid Content-Length field value is required on all HTTP/1.0
&gt; request messages containing an entity body.

If it is not required for the response, how does the client read the response when it&#39;s larger than 1MB?


Is the Content-Length header required for a HTTP/1.0 response?

One of the Additional HTTP Status Codes ([RFC6585](https://www.rfc-editor.org/rfc/rfc6585)) is

 *  [429 Too Many Requests](https://www.rfc-editor.org/rfc/rfc6585#section-4)

Where can I find examples of HTTP / REST API Rate-Limiting HTTP response headers useful with this HTTP response status?

Examples of HTTP API Rate Limiting HTTP Response headers

I have the following code:

    package main
    
    import (
    	&quot;encoding/json&quot;
    	&quot;fmt&quot;
    	&quot;io/ioutil&quot;
    	&quot;log&quot;
    	&quot;net/http&quot;
    	&quot;time&quot;
    )
    
    type twitterResult struct {
    	Results []struct {
    		Text     string `json:&quot;text&quot;`
    		Ids      string `json:&quot;id_str&quot;`
    		Name     string `json:&quot;from_user_name&quot;`
    		Username string `json:&quot;from_user&quot;`
    		UserId   string `json:&quot;from_user_id_str&quot;`
    	}
    }
    
    var (
      twitterUrl = &quot;http://search.twitter.com/search.json?q=%23UCL&quot;
      pauseDuration = 5 * time.Second
    )
    
    func retrieveTweets(c chan&lt;- *twitterResult) {
    	for {
    		resp, err := http.Get(twitterUrl)
    		if err != nil {
    			log.Fatal(err)
    		}
    
    		defer resp.Body.Close()
    		body, err := ioutil.ReadAll(resp.Body)
    		r := new(twitterResult) //or &amp;twitterResult{} which returns *twitterResult
    		err = json.Unmarshal(body, &amp;r)
    		if err != nil {
    			log.Fatal(err)
    		}
    		c &lt;- r
    		time.Sleep(pauseDuration)
    	}
    
    }
    
    func displayTweets(c chan *twitterResult) {
    	tweets := &lt;-c
    	for _, v := range tweets.Results {
    		fmt.Printf(&quot;%v:%v\n&quot;, v.Username, v.Text)
    	}
    
    }
    
    func main() {
    	c := make(chan *twitterResult)
    	go retrieveTweets(c)
    	for {
    		displayTweets(c)
    	}
    
    }

I&#39;d like to write some tests for it, but I&#39;m not sure how to use the httptest package http://golang.org/pkg/net/http/httptest/ would appreciate some pointers 

I came up with this (shamelessly copied from the tests for go OAuth https://code.google.com/p/goauth2/source/browse/oauth/oauth_test.go):

    var request = struct {
    	path, query       string // request
    	contenttype, body string // response
    }{
    	path:        &quot;/search.json?&quot;,
    	query:       &quot;q=%23Kenya&quot;,
    	contenttype: &quot;application/json&quot;,
    	body:        twitterResponse,
    }
    
    var (
    	twitterResponse = `{ &#39;results&#39;: [{&#39;text&#39;:&#39;hello&#39;,&#39;id_str&#39;:&#39;34455w4&#39;,&#39;from_user_name&#39;:&#39;bob&#39;,&#39;from_user_id_str&#39;:&#39;345424&#39;}]}`
    )
    
    func TestRetrieveTweets(t *testing.T) {
    	handler := func(w http.ResponseWriter, r *http.Request) {
    
    		w.Header().Set(&quot;Content-Type&quot;, request.contenttype)
    		io.WriteString(w, request.body)
    	}
    
    	server := httptest.NewServer(http.HandlerFunc(handler))
    	defer server.Close()
    
    	resp, err := http.Get(server.URL)
    	if err != nil {
    		t.Fatalf(&quot;Get: %v&quot;, err)
    	}
    	checkBody(t, resp, twitterResponse)
    }
    
    func checkBody(t *testing.T, r *http.Response, body string) {
    	b, err := ioutil.ReadAll(r.Body)
    	if err != nil {
    		t.Error(&quot;reading reponse body: %v, want %q&quot;, err, body)
    	}
    	if g, w := string(b), body; g != w {
    		t.Errorf(&quot;request body mismatch: got %q, want %q&quot;, g, w)
    	}
    }


How to test http calls in Go using httptest

My application has a resource at `/foo`. Normally, it is represented by an HTTP response payload like this:

    {&quot;a&quot;: &quot;some text&quot;, &quot;b&quot;: &quot;some text&quot;, &quot;c&quot;: &quot;some text&quot;, &quot;d&quot;: &quot;some text&quot;}

The client doesn&#39;t always need all four members of this object. What is the **RESTfully semantic** way for the client to tell the server what it needs in the representation? e.g. if it wants:

    {&quot;a&quot;: &quot;some text&quot;, &quot;b&quot;: &quot;some text&quot;, &quot;d&quot;: &quot;some text&quot;}

How should it `GET` it? Some possibilities (I&#39;m looking for correction if I misunderstand REST):

 - `GET /foo?sections=a,b,d`.
  - The query string (called a *query* string after all) seems to mean &quot;find resources matching this condition and tell me about them&quot;, not &quot;represent this resource to me according to this customization&quot;.
 - `GET /foo/a+b+d` My favorite **if REST semantics doesn&#39;t cover this issue**, because of its simplicity.
  - Breaks URI opacity, violating HATEOAS.
  - Seems to break the distinction between resource (the sole meaning of a URI is to identify one resource) and representation. But that&#39;s debatable because it&#39;s consistent with `/widgets` representing a presentable list of `/widget/&lt;id&gt;` resources, which I&#39;ve never had a problem with.
 - Loosen my constraints, respond to `GET /foo/a`, etc, and have the client make a request per component of `/foo` it wants.
  - Multiplies overhead, which can become a nightmare if `/foo` has hundreds of components and the client needs 100 of those.
  - If I want to support an HTML representation of `/foo`, I have to use Ajax, which is problematic if I just want a single HTML page that can be crawled, rendered by minimalist browsers, etc.
  - To maintain HATEOAS, it also requires links to those &quot;sub-resources&quot; to exist within other representations, probably in `/foo`: `{&quot;a&quot;: {&quot;url&quot;: &quot;/foo/a&quot;, &quot;content&quot;: &quot;some text&quot;}, ...}`
 - `GET /foo`, `Content-Type: application/json` and `{&quot;sections&quot;: [&quot;a&quot;,&quot;b&quot;,&quot;d&quot;]}` in the request body.
  - Unbookmarkable and uncacheable.
  - HTTP does not define body semantics for `GET`. It&#39;s legal HTTP but how can I guarantee some user&#39;s proxy doesn&#39;t strip the body from a `GET` request?
  - My [REST client][1] won&#39;t let me put a body on a `GET` request so I can&#39;t use that for testing.
 - A custom HTTP header: `Sections-Needed: a,b,d`
  - I&#39;d rather avoid custom headers if possible.
  - Unbookmarkable and uncacheable.
 - `POST /foo/requests`, `Content-Type: application/json` and `{&quot;sections&quot;: [&quot;a&quot;,&quot;b&quot;,&quot;d&quot;]}` in the request body. Receive a `201` with `Location: /foo/requests/1`. Then `GET /foo/requests/1` to receive the desired representation of `/foo`
  - Clunky; requires back-and-forth and some weird-looking code.
  - Unbookmarkable and uncacheable since `/foo/requests/1` is just an alias that would only be used once and only kept until it is requested.


  [1]: https://chrome.google.com/webstore/detail/postman-rest-client/fdmmgilgnpjigdojojpjoooidkmcomcm?hl=en &quot;REST client&quot;

Different RESTful representations of the same resource

Usually, a browser groups cookies into a single `Cookie` header, such as:

    Cookie: a=1; b=2

Does the standard allow to send these as separate headers, such as:

    Cookie: a=1
    Cookie: b=2

Or do they always have to be on the same line?

Content Type	Original Author	Original Content on Stackoverflow
Question	More Than Five	View Question on Stackoverflow
Solution 1 - Html	Quentin	View Answer on Stackoverflow
Solution 2 - Html	Dogoferis	View Answer on Stackoverflow

Adding http request header to a a href link

Html Problem Overview

Html Solutions

Solution 1 - Html

Solution 2 - Html

How do I reset my sidekiq counters?

Applying CSS styles to all elements inside a DIV

Attributions