mode-rust.js is not found
#2700
Labels
C-bug
Category: A bug, incorrect or unintended behavior
Comments
|
Yes and it's why I opened #2617. |
ehuss
added a commit
to ehuss/mdBook
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this issue
May 23, 2025
The reason the ACE editor was failing to load the rust syntax highlighting is because the syntax highlighting was being created *after* the editor was created. If the editor is created first, then ACE tries to load `ace/mode/rust`. Since it isn't already defined, it tried to compute the URL and load it manually. However, since the URLs now have a hash in it (via rust-lang#1368), it was unable to load. The solution here is to make sure `ace/mode/rust` is defined before creating the editors. Then ACE knows that it can just load the module directly instead of trying to fetch it from the server. Fixes rust-lang#2700
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Problem
When loading a page with Rust editable code blocks, such as the "Rust Codeblocks" page in the test book, the browser throws a 404 on trying to access
/mode-rust.js. It's hitting this because the script tag isn't using the hashed version of the file name.There's some strange interaction with the
aceeditor going on here. The script tag that triggers this 404 is inserted dynamically.This was introduced, I'm guessing, by #1368. A bisection points at commit 74200f7, but I'm guessing that's just because it fixed another issue that may have been masking this one.
Is this why the
move-between-pages.gomltest had to keepfail-on-request-errordisabled in #2552?cc @notriddle @GuillaumeGomez @ehuss
Steps
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Possible Solution(s)
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Notes
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Version
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