Issues behind AWS

[Erik Westlund]

Hi everyone,

I recently started moving my web setup to AWS from Linode.  I have an app I wrote a while ago for practice in Shiny that uses custom HTML + binds inputs to shiny.  

Under AWS, the inputs up top are not binding.  It causes the error.  Example:

http://52.88.47.14:3838/blackjacker/

However, under Linode it's fine:

http://104.200.28.88:3838/blackjacker/

Other apps work fine.

I have port 3838 freed up on both.

I'm wondering if it has something to do with shiny/shiny-server/R and versions.

AWS: 3.2.2 shiny-server 1.4.0.721   (latest build) Shiny_0.12.2

Linode: 3.0.2 shiny-server 1.2.2.367    Shiny version 10.2.1

Nothing mission critical here, but I'm still puzzled. Would Joe or any of the developers have any insights?

Thanks if anyone has any input.

[Joe Cheng]

The way radio buttons are bound changed in Shiny 0.11 (I think). You need to do something like this:

<div class="shiny-input-radiogroup" id="mygroup">

  <input type="radio" name="mygroup" value="...">  ...

</div>

I've bolded the parts that are most important. The ID of the outer div needs to match the names of the radio inputs. And shiny-input-radiogroup must be the class of the outer div. (If you want a span instead of a div for the container, that should be fine too.)

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