Cannot view the encoeded base64 image in package READMEs

[yoonhyung]

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: http://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: http://flight-manual.atom.io/hacking-atom/sections/debugging/
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  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

[Description of the issue]
Previously there was a problem with the relative path, so I used the base64 encoded image in the README file. As a result, the version of Atom version 1.22.1 worked well. However, the base64 encoded image is not visible as it is updated to 1.23.0.

So I checked the source(package-readme.view.js) and found that the sanitize function added a new line that merges the packaged path with the image source.

Expected behavior: [What you expect to happen]

it will show the encoeded based64 image in package REAEMEs

Versions

Atom : 1.22.1
Electron: 1.6.15
Chrome : 56.0.2924.87
Node : 7.4.0

apm 1.18.8
npm 3.10.10
node 6.9.5 x64
python 2.7.13
git 2.9.3.windows.1
visual studio 2015

Additional Information

Before merging an image source with a package relative path, you need to check whether it is base64 as a regular expression in that source.

[yoonhyung]

refer to the below code

in package-readme-view.js

function sanitize(...) {
...
    // if src contains a base64 enconding string then it must be a base64 enconding
    if (/^data:image\/.*;base64/i.test(imageSrc)) {
      changeImageSrc = false;
    }
...
}