Is my AJAX Call function correct for Removal of Table Row?

I'm having trouble figuring out why my "Remove" button is not working as intended. I'm working on a webpage. Long story short, the main page contains a table whose rows are added via user input, some SQL database queries, and Flask. I want to be able to remove rows w/o refreshing the page, so I got some help constructing an AJAX call to do just that. This is the portion meant to handle that action:

$("#button").clicked(function() {
var rowsToRemove = [];
$(".checkitem:checked").each(function() {
  var rowIndex = $(this).parent("tr").index(this);
  rowsToRemove.push(rowIndex+1);
});

delete_ajax = $.ajax({
        type : 'POST',
        method: 'POST',
        url : "/home",
        data : JSON.stringify({rowsToRemove:rowsToRemove, typeofpost: 'delete'}),
        dataType: "json",
        contentType: "application/json"
});

delete_ajax.done(function(responseObject, textStatus, jqXHR) {
    if(responseObject.status == 200) {
      reloadTable();
    }
});

delete_ajax.error(function() {
  alert("Unable to delete row(s). Please try again.");
});

});

And here is the portion that I was assisted with from the Flask side that would distinguish between delete calls and posted data:

if request.json.get('type') == 'add':
        if not request.form.get("password"):
            return apology("'Password' field required. Please enter a symbol.", 403)
        if not request.form.get("website"):
            return apology("'Website' field required. Please enter a share.", 403)

        password=request.form.get("password")

        db.execute("INSERT INTO passwords (user_id, password, cipher, website) VALUES (:userID, :password, :cipher, :website)",
                    userID=session["user_id"],
                    password=password,
                    cipher=encrypt(password),
                    website=request.form.get("website"))

        length = db.execute("SELECT COUNT(password) FROM passwords WHERE user_id = :userID", userID=session["user_id"])#.fetchone()[0]

        db.execute("UPDATE passwords SET row_id = :rowID WHERE user_id = :userID AND password = :pw",
                    rowID=length[0]["COUNT(password)"],
                    userID=session["user_id"],
                    pw=password)

        #return redirect("/home")
        return {"status":200}

    # from delete
    if request.json.get('type') == 'delete':
        length = db.execute("SELECT COUNT(password) FROM passwords WHERE user_id=:userID", userID=session["user_id"]).fetchone()[0]

        index = list(range(1, length+1))

        data_to_delete = request.json.get("data")

        rowsToRemove = db.execute("DELETE FROM passwords WHERE row_id IN :data AND user_id:=userID", data=data_to_delete, userID=session["user_id"])

        db.execute("UPDATE passwords SET row_id=:rowID WHERE user_id=:userID", rowID=index, userID=session["user_id"])

        return {"status":200}

Just in case I need to fix something I overlooked on the HTML side, I'll that as well:

<div class="form-group container">
    <table class="table table-hover thead-dark">
        <thead>
            <th><div class="checkbox">
                    <label><input type="checkbox" class="checkbox" id="checkall" name="checkall"> Select/Deselect All</label>
                </div></th>
            <th>Row</th>
            <th>Password</th>
            <th>Cipher</th>
            <th>Website</th>
        </thead>
        <tbody>
            
        </tbody>
    </table>
    <div class="form-group form-inline container center row">
        <form  action="/home" method="/post">
            <input class="form-control" autocomplete="off" name="password" placeholder="Password" type="text" required>
            <input autocomplete="off" class="form-control" name="website" placeholder="Website" type="text" required>
            <input class="btn btn-primary" type="submit" id="encrypt" value="Encrypt">
        </form>
        <button type="button" class="btn btn-outline-danger" style="margin: auto" id="button">Remove</button>
    </div>

I have a habit of overlooking things, so if there's something I'm missing, please let me know a.s.a.p.