Describe the bug
we have a amazing error and it is marked is not a function;
with this error website can not compile my markdown and it freezes.
i type many word but it compiles 2 letter.

Screenshots

A picture is worth a thousand words :)

Is your feature request related to a problem? Please describe.
No.

Describe the solution you'd like
MSK-Markdown is undoubtedly a very good solution for those of us who want to integrate a markdown editor to their apps without having to go through implementing one by themselves. As it now stands the editor can be used in an angular application but that would require a lot more work than if it was packaged as an angular module natively. Of course, porting it to other frameworks than Angular would be great but, this feature request is about Angular.

Describe alternatives you've considered
Using the editor as a non-Angular module.

Describe the bug
The spaces is ignored in the preview section
when I write anything without using md cmd it only take one space

in the inline code there's no spaces however I put a lot of spaces

this issue not appear in the block code md

Desktop (If applicable, please complete the following information):

• OS: [Linux]
• Browser [Google Chrome]
• Version [2.0]

Steps to reproduce:

• Add some random text in the markdown textarea.
• Notice the Col value changes as you type.
• Move the cursor with the arrows.
• The Col value remains the same unless you type another character or you click inside the textarea.

Try entering this markdown syntax:

[Click Me](javascript:alert('XSS'))

This can allow malicious scripts to run on any user's browser that views this.

These problems are also mentioned in marked.js too:

Warning: 🚨 Marked does not sanitize the output HTML. Please use a sanitize library, like DOMPurify (recommended), sanitize-html or insane on the output HTML! 🚨

I'm no security expert, but I'm pretty sure:
We'll need to sanitize the inputs.

IMPORTANT: We need to sanitize the markdown after marked.js processes it, because of attacks like this:

> hello <a name="n"
> href="javascript:alert('XSS')">*you*</a>

Describe the bug
When we click on the download button without giving name to the file it is saving which should not happen right.

Desktop (If applicable, please complete the following information):

• OS: [linux]
• Browser [Google Chrome]
• Version [ 97.0.4692.99 ]

if we are working on documentation or something like that,
I think it would be a disaster if the browser is closed.

So I would like to save the text on our local storage

What is the improvement?
Github formats markdown files nicely, but it doesn't recognize these files as being markdown since they are missing the extension.
Additional context
I think this small fix would improve the readability of these files. I plan on making a PR.

Side note: This is my first issue/PR, so any suggestions are welcome. Thanks

Describe the bug
Error: Uncaught TypeError: this.save is null.

Screenshots

Desktop:

• OS: Windows10
• Browser : Firefox
• Version 89.0.1

Additional context
Full console error:

Uncaught TypeError: this.save is null
    CreatePreview https://msk-markdown.netlify.app/main.js:79
    execute https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML&delayStartupUntil=configured:19
    cb https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS-MML_HTMLorMML&delayStartupUntil=configured:19

Is your feature request related to a problem? Please describe.
Many markdown editors like the one I'm typing on right now support this feature. When you select text that is already boldface and press the bold button, the boldface is removed.

Describe the solution you'd like
On button click (in the apply() function) check whether the selected text already matches the style, and if so remove the style.

Describe alternatives you've considered
Apply styles over again when button press (current version)

Additional context
It would be better to show a gray background when the user selects a text that already has styles applied (like MS Word)

Can we have this feature, wherein if user presses tab key the editor should indent content.
I feel this is useful when writing code in markdown.