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Allow fonts to cache

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This commit is contained in:
Julian Stirling 2025-08-14 14:00:38 +01:00
parent 025e6b1fba
commit 98c023032c
1 changed files with 11 additions and 9 deletions
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20
src/openflexure_microscope_server/server/serve_static_files.py
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@ -9,6 +9,12 @@ from fastapi import FastAPI
THIS_DIR = os.path.dirname(os.path.abspath(__file__))
NO_CACHE_HEADERS = {
"Cache-Control": "no-store, no-cache, must-revalidate, max-age=0",
"Pragma": "no-cache",
"Expires": "0",
}
def add_static_file(app: FastAPI, fname: str, folder: str) -> None:
"""Add a single file to the root of the FastAPI app.
@ -20,16 +26,12 @@ def add_static_file(app: FastAPI, fname: str, folder: str) -> None:
fname: the name of the file to add
folder: the containing folder of the file
"""
p = os.path.join(folder, fname)
file_path = os.path.join(folder, fname)
# Cache font files, but not other static files.
headers = {} if fname.endswith(".woff2") else NO_CACHE_HEADERS
app.get(f"/{fname}", response_class=FileResponse, include_in_schema=False)(
lambda: FileResponse(
p,
headers={
"Cache-Control": "no-store, no-cache, must-revalidate, max-age=0",
"Pragma": "no-cache",
"Expires": "0",
},
)
lambda: FileResponse(file_path, headers=headers)
)