@vknow360 may be able to provide more qualified assistance...
It does not send any notification.
When I download something usually, Download Manager shows a notification about my download. When I switched to the DownloadBlob block, it stopped showing one. Here are my relevant blocks, if that helps.
Webviewers are each assigned a specific ID - a number that identifies which is which. You can make one webviewer go back and the other one go forward at the same time
So if it is giving you this error, the ID you used is wrong. I don't know how to fix this specifically, but I can guess that it might be a number assigned to no webviewers. So, wherever you have the code where it has the back button, you change the ID there. I think you might make a new variable showing what webviewer you are using but idk, just some small help
I am stuck but I will try to keep working on it - very slow progress due to school 
I think the ID being 0 is the problem, make it a different number idk
You didn't set the current webview.
yea I found out a minute ago, thanks anyways!!
How can i load an html file and 3 css files on same costumwebview?
The html file has to link to all of the css files.
I did it like this and uploaded the files but didn't work
<script src="./tailwind.css"></script>
<link rel="stylesheet" href="./cloudflare.css"></link>
<link href="./google.css" rel="stylesheet">
You are using one as a script? How would that work?
accidentall, but does work, i fixed it now, but its still the same
It's probably an issue with where the linked file is. I'm not sure where AI2 places the files though so I can't really help you there.
oh, k
I even tried putting all the css, js files inside the html with and but still won't work
I will just remake website without using tailwind or anything, just plain html, css js, cuz idk why no work
Like above, ensure your html and css files are all in the same directory
I FINALLY GOT IT WORKING ASGHDDJ HERE IS THE CODE
The place where it says "Customwebviewercontain" at the top, use any arrangement or container and then switch it out for that
you make two buttons and one of them has this procedure but the ID input is set to one and the other has an ID input set to two
I hope this helps
Also create a variable called "I" which is the counting variable