Inputs on Ember refresh page when a user hits Enter key - ember.js

Question

I'm using Ember CLI and have noticed odd behaviour. When the user clicks into the input and presses the enter key, the page refreshes.
My page has a basic element like this that is NOT part of any form:
<input type="text" class="form-control" id="per_page" value="50">
I am currently serving the page via:
ember cli
So node is hosting and has the fancy live reload thing going on so that when I update a page that is part of the underlying app.
So what is causing a page reload the enter key pressed inside an input? Could it be node or live reload? Are inputs just supposed to refresh a page when a user presses the enter key and I missed that in my HTML for dummies book?
**Better still, how can I intercept and instead call a function via:
{{action** "myFunction"}}

Answer 1

That happens because when you hit Enter, form gets submitted which results in page reload. what you need to do is set onsubmit="return false" on the form so nothing happens during submit. you can bind input to execute some action by adding action attribute action="doSomething"
<form onsubmit="return false">
{{input type="text" action="createComment" value=topic id="inputTopic"}}
</form>

Answer 2

Edit: In Ember 3+ you now use the {{on}} modifier to setup events on elements.
<form {{on 'submit' this.submitForm}}>
<!-- the rest of your form here -->
<button type='submit'>Submit</button>
</form>
And the action defined like so
#action
submitForm(event) {
event.preventDefault();
// Your code
}
Historically Ember has handled this use case with the following code:
<form {{action 'submitForm' on='submit'}}>
<!-- the rest of your form here -->
<button type='submit'>Submit</button>
</form>
This prevents the form from refreshing the page.
There is another method that gives you more control, by giving you the event so you can manage that yourself:
<form onsubmit={{action 'submitForm'}}>
<!-- the rest of your form here -->
<button type='submit'>Submit</button>
</form>
In this case, you will get an event and will have to call event.preventDefault() to stop the page refresh.
actions: {
submitForm(event) {
event.preventDefault();
}
}
This is a running example of the two: https://ember-twiddle.com/827820958e054f7af57b7677630729fc?openFiles=controllers.application.js%2C

Answer 3

I had the same problem - what worked for me, was to overwrite the keyPress Event in the input component like this:
keyPress: function (e) {
var keyCodeEnter = 13;
if (e.keyCode === keyCodeEnter) {
return false;
}
}
Hope it will help someone in the future! :)