When trying to start a C191 quiz the page that opens is blank and nothing happens.

Issue:
I can not run the program on my local machine. These errors are from attempting to run the program from the master branch with npm start. No local modifications have been made to the code.

Screenshots:

VSCode Terminal Error message:

Chrome Dev Console - sources tab:
1.

2.

Chrome Dev Console - Network Tab:

First I did npm install to load the node modules. I then run npm start and get this error. I don't have docker installed, but not sure if that is even related to this problem. See screenshot for error details and hopefully this is an easy fix so I can start using this quizsail app.

Tried getting this running locally and it threw an error as soon as I selected and started a test.

Error: ENOENT: no such file or directory, open 'data/a15821713c5629b6895370a5c1c59999'
    at Object.openSync (fs.js:436:3)
    at Object.writeFileSync (fs.js:1229:35)
    at H:\quizsail\server.js:16:8
    at Layer.handle [as handle_request] (H:\quizsail\node_modules\express\lib\router\layer.js:95:5)
    at next (H:\quizsail\node_modules\express\lib\router\route.js:137:13)
    at Route.dispatch (H:\quizsail\node_modules\express\lib\router\route.js:112:3)
    at Layer.handle [as handle_request] (H:\quizsail\node_modules\express\lib\router\layer.js:95:5)
    at H:\quizsail\node_modules\express\lib\router\index.js:281:22
    at param (H:\quizsail\node_modules\express\lib\router\index.js:354:14)
    at param (H:\quizsail\node_modules\express\lib\router\index.js:365:14)

It's looking for a data folder/directory so my proposed solution would be to add it to this project.

I'll submit a PR for this shortly.

Edit: Seen the same closed issues like this one, still think it would be a good idea to add the data folder from the get-go to avoid future duplicate issues.

Shouldn't this be true? Got the definition from the video on Lynda.com "What is a bug model?" A bug model is a predictive model that's often based on both historical data and planned activities throughout the cycle,

In a walkthrough the majority of program testing is conducted by the author of the program.

Isn't this true?

Some students are seeing this when they visit the site: https://media.discordapp.net/attachments/558308722271846410/635147468564070441/image0.jpg?width=324&height=702

I think it may be a https thing? When they click the direct link https://www.quizsail.com it works fine.

Q:Indicate if the given statements about error-locating principles is true or false.

A:
radio input true
radio input false
radio input Involve a mental analysis of the information associated with the error's symptoms.

"Involve a mental analysis of the information associated with the error's symptoms." should be part of the question not part of the answers.

I had the blank screen appear on Monday afternoon but by Tuesday afternoon the questions were back and it kept my records in tact. Now it's been since Tuesday afternoon that the screen is just blank for course C191. I take the exam tomorrow and I had plans to do all 717 questions prior to that exam. Is there anyway for someone to fix this issue please. I was learning A LOT using this platform. Videos do not help me learn like multiple choice questions.

Many of the answers to the questions for C191 are wrong and directly contradict the Wiley textbook. I am about halfway through the 705 questions and I have found about a dozen definitely-wrong answers. Many of the questions I can't find a reference for because they are not found in the textbook and they need to be double checked because studying from incorrect reference material is unacceptable. I am just a student so if it's possible to get a professor to check the questions, that would be ideal.
I will attach the incorrect answers I found so far as images with the text to prove they are wrong. I will add the incorrect ones I find in the second half later on.

As far as I can tell the only way to continue where you left off is if you save a copy of the URL somewhere. It would be good if, when visiting the home page, the user could see a list of their sessions and select one to continue.

Seems like an easy way to solve this would be to put their query strings (possibly along with "created on" and "last used" dates) into localstorage, whenever a new session is created. Then when they visit the homepage, check their localstorage and display a list of links with dates.

It wouldn't help if the user moves to a different device, but to solve that you'd have to implement users with authentication and everything, which is probably overkill.

Anyway if this sounds good I could send a PR with these changes. Thanks for making this, it's very helpful.