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Markdown preview fails to load required CSS and JS on VSCode startup #100879

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JoernBerkefeld opened this issue Jun 23, 2020 · 4 comments
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Markdown preview fails to load required CSS and JS on VSCode startup #100879

JoernBerkefeld opened this issue Jun 23, 2020 · 4 comments
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@mjbvz
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bug Issue identified by VS Code Team member as probable bug insiders-released Patch has been released in VS Code Insiders verified Verification succeeded webview Webview issues
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June 2020

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@JoernBerkefeld
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JoernBerkefeld commented Jun 23, 2020 •
edited

  • VSCode Version: 1.46.0
  • OS Version: Windows 10 / Windows_NT x64 10.0.18363

Steps to Reproduce:

  1. Open any .md / markdown file
  2. Open the preview to the side
  3. close the VSCode window
  4. re-open VSCode
    • this should automatically re-open the same previously open workspace/folder
    • the Markdown file and its preview tab should re-open automatically

Expected outcome:
Markdown preview is rendered according to current theme - or to what's setup in markdown.style / markdown.previewStyle.

Actual outcome:
Only inline styles and default browser styles are rendered, leaving the preview looking distorted.
looking at the webview console, I can see 7 errors prefixed with Failed to load resource: net::ERR_UNKNOWN_URL_SCHEME for:

  • pre.js
  • markdown.css
  • highlight.css
  • checkbox.css
  • katex.min.css
  • index.js

image

and this is how my preview then looks like:
image

Workaround:

  1. Close preview
  2. re-open preview

image

Does this issue occur when all extensions are disabled?: Could not test.
@gjsjohnmurray
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Maybe related to #100727

@JoernBerkefeld
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JoernBerkefeld commented Jun 23, 2020 •
edited

hi @gjsjohnmurray - yes, i can confirm that i saw the same behavior with CSS loaded via markdown.previewStyles and markdown.styles

@mjbvz mjbvz closed this as completed in 5c11b81 Jun 23, 2020
@mjbvz mjbvz added the bug Issue identified by VS Code Team member as probable bug label Jun 23, 2020
@mjbvz mjbvz modified the milestones: July 2020, June 2020 Jun 23, 2020
@mjbvz mjbvz added the webview Webview issues label Jun 23, 2020
This was referenced Jun 23, 2020
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@sweettyler
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sweettyler commented Jun 24, 2020 •
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@mjbvz I saw this happen with the insider version as early as May 21 and it mysteriously came back to normal on May 25. I don't think the commit 61f796e is the real cause, although the problem may disappear after you revert it back.

This was referenced Jun 25, 2020
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@mhutchie
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@mjbvz I've had reports that this was fixed in the Insiders release 9b620b2, however it is broken again for every user I've checked with in:

Version: 1.47.0-insider (user setup)
Commit: 6c235c7
Date: 2020-06-26T06:20:06.931Z
Electron: 8.3.3
Chrome: 80.0.3987.165
Node.js: 12.13.0
V8: 8.0.426.27-electron.0
OS: Windows_NT x64 10.0.18362

How could this occur?

@mhutchie mhutchie mentioned this issue Jun 26, 2020
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@chrmarti chrmarti mentioned this issue Jun 26, 2020
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@jrieken jrieken added the verified Verification succeeded label Jul 2, 2020
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bug Issue identified by VS Code Team member as probable bug insiders-released Patch has been released in VS Code Insiders verified Verification succeeded webview Webview issues
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