Tkinter Scrolling Canvas Sizing

Question

I've been fighting this all day and I finally have a workable solution, which I'm hoping I don't get torn apart for. I was trying to make a window that allows me to scroll through multiple records, the only thing I have found is an old post on stackoverflow (originally like 2010, but he updated the code in 2018) that allows you to attach a frame to a canvas to scroll through all widgets on the frame.

The code below works, but I'm wondering how I change the size of the canvas. This seems to leave a line on the right side of the window that I believe is the edge of the canvas, and it doesn't fit it to the window, even with the canvas set to fill both and expand true. Is there something I am missing?

import tkinter as tk
import tkinter.ttk as ttk
        
def addNewCqrs():
    backEndCqrs = []
    frontEndCqrs = [[65435213245, 6543,52143, 65463543,654654, 6546354, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654],[65435213245, 6543,52143, 65463543,654654, 6546354, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654],[65435213245, 6543,52143, 65463543,654654, 6546354, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654, 654654]]
    backEndIds = []
    newCqrs = []

    for cqr in backEndCqrs:
        backEndIds.append(cqr[0])

    for cqr in frontEndCqrs:
        if cqr[0] in backEndIds:
            continue
        newCqrs.append(cqr)

    window = tk.Tk()

    canvas = tk.Canvas(window, borderwidth=0, background='blue')
    canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)

    frame = tk.Frame(master=canvas, relief=tk.RAISED, borderwidth=1, background='red')
    frame.grid(row=0, column=0, sticky=tk.NSEW)

    scroll = ttk.Scrollbar(master=window, command = canvas.yview)
    canvas.configure(yscrollcommand=scroll.set)
    scroll.pack(side=tk.RIGHT, fill=tk.Y)

    label = ttk.Label(master=frame)
    label.pack(fill=tk.BOTH, side=tk.TOP, expand=True)

    button = ttk.Button(master=frame, text='Exit', command=window.destroy)

    if len(newCqrs) == 0:
        label.config(text="We didn't find any new CQR's")
        button.pack(fill=tk.BOTH, side=tk.TOP)
        return
        
    label.config(text="We have added the following CQR's")

    for cqr in newCqrs:
        cqrText = (f'CQR {cqr[0]}\n'
                   f'Start time:            {cqr[1]}\n'
                   f'Completion time:       {cqr[2]}\n'
                   f'Email:                 {cqr[3]}\n'
                   f'Name:                  {cqr[4]}\n'
                   f'Dealer:                {cqr[5]}\n'
                   f'Customer:              {cqr[6]}\n'
                   f'Date reported:         {cqr[7]}\n'
                   f'Order number:          {cqr[8]}\n'
                   f'Invoice number:        {cqr[9]}\n'
                   f'Serial number:         {cqr[10]}\n'
                   f'Failed part number:    {cqr[11]}\n'
                   f'Causal part number:    {cqr[12]}\n'
                   f'Part Description:      {cqr[13]}\n'
                   f'Defect observed:       {cqr[14]}\n'
                   f'Files:                 {cqr[15]}\n')

        label = ttk.Label(master=frame, text=cqrText, wraplength=380, justify=tk.LEFT)
        label.pack(fill=tk.BOTH, side=tk.TOP)

    button.pack(fill=tk.BOTH, side=tk.TOP)

    canvas.create_window((0,0), window=frame, anchor=tk.NW)
    frame.bind("<Configure>", lambda event, canvas=canvas: onFrameConfigure(canvas))
    
def onFrameConfigure(canvas):
    canvas.configure(scrollregion=canvas.bbox('all'))

addNewCqrs()