title: Auto login to website using script or bookmark
body: <p>I've been trying to figure this out using various different methods. I'm trying to create a script/bookmark or some type of quick action to open a browser tab or window with a specific URL, and automatically log me in using my credentials. I'm not all that concerned about security for this at the moment.</p>
  
  <p>At first I figured I'd try to use a javascript bookmark to do this, but nothing I found in my research worked. Next I tried to create a bash script, but I couldn't figure out how to send the credentials in via the terminal. Most recently, I literally copied the source code of a site, created a local file and tried to hack together something where I could prefill the form data with credentials and use JS to submit the form, and I've gotten close with this, but for some reason when I use the JS submit function, it errors out and says that the username and password are invalid. But when i turn off the submit function and manually click "log in" on my local html page, it works as expected. I want this to be a one click process, so the idea of using onload/submit or something to that affect is really important to me. </p>
  
  <p>The site I'm testing with has a Rails backend and my next attempt might be trying to use POST to do what I'm thinking, but that's currently outside of my level of knowledge on the subject.</p>
  
  <p>Anyone answering: i do not want to use a password manager to accomplish this.</p>
  
  <p>My requirement is that i will either be able to a) run a script or b) use a 1-click option to do this per website. Ideally i'd be able to set this up in a sort of programmatic way to do this with multiple sites, but I'd be happy with 1 at the moment.</p>
  
  <p>i know similar questions have been answered before, but I haven't been able to use information from those posts (the ones I've seen anyway) to figure out a good way to do this. </p>