Well over a year ago Salesforce announced that they were going to retire slowly the “Left Navigation Hacks” in Salesforce. In the Summer 15 this took a next step of stopping the execution of JavaScript in homepage HTML components. This allowed developers to inject JavaScript code into the Salesforce left navigation to allow them to manipulate more or less any part of the Salesforce desktop user interface. This had positive uses too like allowing app providers like PostcodeAnywhere to dynamically search and clean addresses while the Salesforce user was entering information and not on save of the record.
There were two ways you could inject JavaScript into the left navigation of Salesforce, by either by using an HTML homepage component where you can enter your JavaScript or by using a JavaScript homepage link and put your JavaScript in there. Salesforce has now closed the door on using HTML components but kept the door open for homepage link JavaScript injection. I assumed they were doing both so keeping the JavaScript links available still allows you to embed JavaScript code.
I’m guessing this will be the next thing to be restricted but will it be the next release or announce and wait a year before closing it off? My betting is that it will be closed soon but does give developers a little more time to work on a solution to the retirement of the left nav hacks. But definitely don’t create any new left nav hacks!
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