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Unable to Properly Add Javascript to Header

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I am at my wit's end here. I am working on a package for 5.7.x, and I can't get a javascript to load properly in the header.

Currently, the script I am trying to add always appears before the main jquery library. For it to work, I need to load AFTER jquery is loaded.

Here is what I have in my block controller: 
public function view() {
         $html = Loader::helper('html');
         $b = $this->getBlockObject();         
         $btID = $b->getBlockTypeID();
         $bt = BlockType::getByID($btID);
         $uh = Loader::helper('concrete/urls');
         $this->addHeaderItem($html->javascript($uh->getBlockTypeAssetsURL($bt) . '/ss-js/jquery.lifestream.js'));
      }

I tried doing the above, but with "on_start", but got the same results.

How do I properly load package javascript in the header, but so that it shows up AFTER jquery is loaded?
PineCreativeLabs
 
PineCreativeLabs replied on at Permalink Reply
PineCreativeLabs
Nevermind, got it working by using the assets method.
Shotster replied on at Permalink Reply
Shotster
Can you elaborate / post some code? I've done it from a package controller, but only for assets C5 provides. I'd be interested to know how to load custom block-specific JS from a block controller.

-Steve