# Link\_to\_remote and browser compatibility

**URL:** <https://www.ruby-forum.com/t/link-to-remote-and-browser-compatibility/50338>\
**Category:** Rails\
**Created:** [December 15, 2005, 1:15pm UTC](https://www.ruby-forum.com/t/link-to-remote-and-browser-compatibility/50338 "2005-12-15T13:15:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jonas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/aeb1de/32.png) [@jonas](https://www.ruby-forum.com/u/jonas)\
**Post date:** [December 15, 2005, 1:15pm UTC](https://www.ruby-forum.com/t/link-to-remote-and-browser-compatibility/50338/1 "2005-12-15T13:15:23Z")

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link\_to\_remote generates the javascript: new Ajax.Updater(…). Have I  
missed something or doesn’t this handle browsers with javascript support  
but without XHR support?

What I’d like to do is:

1. If the browser supports XHR, use XHR
2. If the browser supports javascript (and perhaps even if the XHR  
request fails) do a POST via javascript
3. If the browser doesn’t support javascript use POST via a standard  
form

Is that possible?

Thanks in advance,

Jonas Bengtsson

> **[SEO & Sökmotoroptimering - Så fungerar det - And then nothing](https://andthennothing.net)**
>
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**Author:** ![jonas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/aeb1de/32.png) [@jonas](https://www.ruby-forum.com/u/jonas)\
**Post date:** [December 15, 2005, 1:26pm UTC](https://www.ruby-forum.com/t/link-to-remote-and-browser-compatibility/50338/2 "2005-12-15T13:26:58Z")

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did you include this in your header?

\<%= javascript\_include\_tag ‘prototype’, ‘scriptaculous’ %\>

as well as have those files in your javascripts folder found in the  
public directory?

there is also a url\_for attribute that you can add to your  
link\_to\_remote that will do a post if the browser does not have  
javascript turned on or does not support it.

Andrew

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**Author:** ![jonas](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/aeb1de/32.png) [@jonas](https://www.ruby-forum.com/u/jonas)\
**Post date:** [December 15, 2005, 4:23pm UTC](https://www.ruby-forum.com/t/link-to-remote-and-browser-compatibility/50338/3 "2005-12-15T16:23:45Z")

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Thanks for your answer Andrew,

Andrew F. wrote:

> did you include this in your header?
> 
> \<%= javascript\_include\_tag ‘prototype’, ‘scriptaculous’ %\>
> 
> as well as have those files in your javascripts folder found in the  
> public directory?

Yes. link\_to\_remote works when I use a browser with XHR support so  
everything is set up correctly.

> there is also a url\_for attribute that you can add to your  
> link\_to\_remote that will do a post if the browser does not have  
> javascript turned on or does not support it.

Do you mean options[‘url’]? Won’t it just do a GET on that url if  
javascript is turned off (I want a POST)? And that still don’t address  
browsers without XHR support.

/Jonas