I'm looking for a way to trigger the report to download on page ready. 

I have tried the following, with no success. Is there a javascript function I can call instead of trying to trigger the download button being clicked?

The console.log statements show up in the console, and I'm not generating any errors - but my report isn't being downloaded, unless I click the button. 

<script>
jQuery(document).ready(function($) {
    $(".reportbuilder_button download btn waves-effect").click();
    console.log("Ran the javascript click event...");
    $(".reportbuilder_button download btn waves-effect").trigger('click');console.log("Ran the javascript trigger click event...");
});
</script>

As a slight update on this - still not resolved. 

Using the following initiates the button click, but generates a further error with the filtering being passed to the stringify function - perhaps the datatable is still being loaded when the document.load function is still waiting on results. Not sure how to overcome this. 

<script>
jQuery(document).ready(function($) {

    $(".reportbuilder_button").attr('id',"downbutt");
    $(".reportbuilder_button").click();

    $(".reportbuilder_button").trigger(click); //alternatively. 

});

   console.log("Ran the javascript click event...");

</script>

So this doesn't quite work, and the reason why seems to be that when document.ready is triggered the data table has not finished receiving all the data and filtering. 

This function might work if serverside filtering were enabled, but alas I'm filtering from a gravity forms input and thus server side filtering isn't what I'm after. 

This is certainly a function that has benefits in a number of other places. For example I'm using the function to trigger download of a report from a html table of links. I have 80 rows, and 5 columns - each can supply a different report. I don't mind the data being loaded into the users browser, but I don't want them seeing the table - so it's easier to hide the table, use a url filter, and trigger the download function some other way.