Unable to get fine cuts. Everything getting blown out

discourse · November 11, 2017, 3:56am

There’s absolutely no rush - I won’t be able to get an engineer to look at
it until Monday anyway. When you’re back at your computer, kindly upload an
affected SVG directly to Discourse, but also upload the file in a zip, or
externally and link to it so I can pass along the original SVG file too.

Tony-Wright · November 11, 2017, 7:14am

Here’s the source file (dropbox link):

Here’s an upload belt-complete

cynd11 · November 11, 2017, 11:37am

Thanks for responding, Tony! I didn’t really have a file that showed the problem.

chris1 · November 12, 2017, 1:34am

Here is a trivial test case and an explanation of the problem. Discourse strips out parts of the SVG, including the inline style sheet. Take, for example, this blue square:

square-css

No, really, it’s a blue square in the original:

<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="1in" height="1in" viewBox="0 0 72 72">
  <defs>
    <style>
      .cls-1 {
        fill: blue;
      }
    </style>
  </defs>
  <title>square-css</title>
  <rect class="cls-1" width="72" height="72"/>
</svg>

But this is what comes out after it’s uploaded:

<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" data-name="Layer 1" width="1in" height="1in" viewBox="0 0 72 72">
  <defs>
    
  </defs>
  
  <rect class="cls-1" width="72" height="72"/>
</svg>

Here is a discussion from a year ago on this issue, which is apparently done “because security”: https://meta.discourse.org/t/svg-corruption-on-download-of-local-images/50081

And finally, here is a workaround. In Illustrator, do not choose the option “Internal CSS”:

Either of the other two will work in the sense that the SVG will still be mangled by Discourse, but the style won’t be lost.

square-inline

In:

<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" width="1in" height="1in" viewBox="0 0 72 72">
  <title>squares-inline</title>
  <rect width="72" height="72" style="fill: blue"/>
</svg>

Out:

<?xml version="1.0"?>
<svg xmlns="http://www.w3.org/2000/svg" id="Layer_1" data-name="Layer 1" width="1in" height="1in" viewBox="0 0 72 72">
  
  <rect width="72" height="72" style="fill: blue"/>
</svg>

examples.zip (685 Bytes)

willcfc · November 12, 2017, 1:54am

Forest_Tea_Light

here’s another.

willcfc · November 12, 2017, 1:58am

Forest_Tea_Light1

This is the file using chris1’s idea. Works!

discourse · November 13, 2017, 6:01pm

Glad you found a solution!

As Chris mentioned, unfortunately SVG files can be a security risk, as
malicious code (JavaScript) can be embedded in files, so we have to be
careful with what is allowed.

aobrien · November 13, 2017, 8:43pm

Hah I just printed that over the weekend too! Apparently that file is getting a lot of love. I was curious about how thin the branches would hold. It definitely charred and destroyed some of the thinnest branches. Still came out nicely for a learning project. I used draft board and spray painted it a dark brown.