language mode becomes invalid

Type: Bug

In the preview mode of the search, the language mode of the Vue files becomes invalid.

VS Code version: Code 1.129.1 (8a7abeba6e03ea3af87bfbce9a1b7e48fed567b8, 2026-07-17T15:35:09Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|Intel(R) Core(TM) i7-10700F CPU @ 2.90GHz (16 x 2904)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x10de, DEVICE=0x21c4 [NVIDIA GeForce GTX 1660 SUPER], DRIVER_VENDOR=NVIDIA, DRIVER_VERSION=32.0.15.6607 *ACTIVE*
GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8875
Machine model name:
Machine model version:
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|15.83GB (4.38GB free)|
|Process Argv|--file-uri file:///d%3A/aCode/vscodeworktable/WSWechatApp-v3.code-workspace --crash-reporter-id 727b3a34-15f8-42ac-9786-c068a43866ce|
|Screen Reader|no|
|VM|0%|
Extensions (23)

Name|Identifier|Author|Version
---|---|---|---
Claude Code for VS Code|anthropic.claude-code|Anthropic|2.1.217
Path Intellisense|christian-kohler.path-intellisense|christian-kohler|2.10.0
px to rem & rpx & vw (cssrem)|cipchk.cssrem|cipchk|4.1.1
JSDoc Generator|crystal-spider.jsdoc-generator|crystal-spider|2.3.4
ESLint|dbaeumer.vscode-eslint|dbaeumer|3.0.34
uni-app x语言服务|dcloud-ide.hbuilderx-language-services|dcloud-ide|4.87.0
ES7+ React/Redux/React-Native snippets|dsznajder.es7-react-js-snippets|dsznajder|4.4.3
GitLens — Git supercharged|eamodio.gitlens|eamodio|18.3.0
HTML CSS Support|ecmel.vscode-html-css|ecmel|2.0.14
Prettier - Code formatter|esbenp.prettier-vscode|esbenp|12.4.0
Auto Close Tag|formulahendry.auto-close-tag|formulahendry|0.5.15
Beautify css/sass/scss/less|michelemelluso.code-beautifier|michelemelluso|2.3.3
Easy LESS|mrcrowl.easy-less|mrcrowl|2.0.5
Chinese (Simplified) (简体中文) Language Pack for Visual Studio Code|ms-ceintl.vscode-language-pack-zh-hans|MS-CEINTL|1.129.2026071717
Live Server|ritwickdey.liveserver|ritwickdey|5.7.10
open in browser|techer.open-in-browser|techer|2.0.0
es6-string-html|tobermory.es6-string-html|Tobermory|2.17.0
uni-app-snippets|uni-helper.uni-app-snippets-vscode|uni-helper|0.11.2
vscode-icons|vscode-icons-team.vscode-icons|vscode-icons-team|12.19.0
Vue (Official)|vue.volar|Vue|3.3.7
Git Blame|waderyan.gitblame|waderyan|13.1.0
JavaScript (ES6) code snippets|xabikos.javascriptsnippets|xabikos|1.8.0
Markdown All in One|yzhang.markdown-all-in-one|yzhang|3.6.3

A/B Experiments

```
vsliv368:30146709
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
6abeh943:31336334
envsactivate1:31551504
cloudbuttont:31379625
42190218_ostrepl:31403339
bj468946:31457056
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
8hhj4413:31478653
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
46204921:31447328
capico_bxe_098a3278:31551525
idci7584:31464702
e3e4d672:31494082
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
7e187181:31503455
i2gc6536:31499202
52612955:31516516
ghj88844:31499326
ddid_c:31478207
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
56dj4588:31512888
32d76977:31512328
ha629193:31508444
cdk-lw-on:31524445
f9bf7985:31543584
a1ije391_t:31540920
8hfba999:31537718
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
gf14b233:31526830
nes-curr-leftover-1500:31538366
8hjh2968:31552050
h561g132:31533256
sessions_3:31532893

ihg5j128:31534457
f412h606:31551416
9gg7f176:31542112
nes-ex-cf-euporie-03:31542868
enable_editor_pane_layout:31554332
allow-none:31553854
fd5dc207:31551400
nes-gb3-nf-5k:31554345
0dg73464:31554319

```