Make Custom Fonts Available in Collabora CODE Docker
Mount font files into Docker and Collabora’s systemplate so custom typefaces appear in the editor and render correctly in documents.
Chrome has always been one of the best web browsers available today. However, it is also inevitable during use, this web browser is "bad" and makes users feel uncomfortable. One of the errors is that Chrome does not allow downloading data on the network .
Chrome for iOS Chrome for Android
In fact, in addition to Chrome considering the file (data) that you download as dangerous, there are many other causes of Chrome file download errors, such as: network error, no file or missing file, virus scan. Successful or detected virus ... Each different case will have different solutions. In this article, I will introduce you to some of the most basic and common bugs on Chrome.
This usually happens when we try to download a file or software from the internet, after saving , we will receive an error message.

Chrome error to prevent downloading files on the network is shown as below.
If you want to find out the cause, you can select the up arrow icon next to the error file, select Learn more . But with an error like we're seeing " This file is dangerous, so Chrome has blocked the file " is an error because the file you download is thought to be malicious and could be dangerous to your computer, like:
Cause Chrome blocks downloading files:
How to fix Chrome error blocking file download:
ATTENTION:
You should really download or find a way to download files that are blocked by Chrome if you are 100% sure about the safety, as well as the quality of your files and download sources.
If sure, follow the instructions below. Left click Show all downloads in the lower right corner (or press Ctrl + J ).
Then left-click on Keep dangerous files in that file, the software is blocked. Then select Continue in the next message that appears (or Restore Malicious Files / Still Recover ).
You should now see the file continue to load as usual. Wait for the download process to succeed and be able to use normally.
If, while using Chrome or downloading files to your computer, you receive the "NETWORK_FAILED"(this error also occurs even when we try to install something from the Chrome Web Store ), it's probably because an unwanted software is blocking installation.
Treatment:
This error occurs when the file you are trying to download does not exist (no longer exists) on this site or has been moved to another area of the page.
Treatment:
Error downloading the file on Chrome
It is possible that the virus scanning software on your computer has detected a virus in that file, or even, if for some reason Chrome cannot perform a test scan, it will also notify us. about this error.
Treatment:
Just like the " Disk full " error message, this error occurs because the computer (the location you chose to save) has no more free space to save this file.
How to fix:
This error occurs because Chrome cannot save the file or file to your computer.
Treatment:
This webpage is not available - One of the basic bugs of Chrome
When you do not have sufficient rights to download this file, you will be restricted and unable to perform.
Treatment:
This error occurs because of a server-related error. Computer users cannot download this data from the current server.
Treatment:
There are a few basic errors as well as how to fix cases where errors occur when downloading files on Chrome. If you are unfortunate or are having problems downloading files to your computer through this web browser, you can solve this problem yourself with these very simple steps.
Mount font files into Docker and Collabora’s systemplate so custom typefaces appear in the editor and render correctly in documents.
Back up coolwsd.xml and its deployment sources, restore them safely, and verify CODE before users return to editing.
Allow the exact Nextcloud or other WOPI origin in CODE, then verify the active host allow-list and distinguish it from Nextcloud’s source-IP restriction.
Trace Collabora’s browser, WOPI, and WebSocket connections to find why a document will not open, then apply the fix that matches your Nextcloud setup.
Deploy Collabora CODE replicas with Helm, keep each document on one pod through WOPI affinity, and verify ingress, node placement, and Nextcloud editing.
Trace a failed socket handshake from browser to coolwsd, then match the reverse-proxy route to your Collabora version, including the CODE 26.04 Apache change.
Trace Collabora WOPI proof failures to mismatched keys, stale discovery data, clock drift, or proxy URL changes—without weakening validation.
Reset browser zoom, test a clean session, and identify when a malformed size menu needs a Collabora server update.
Deploy Collabora CODE with Docker, connect it securely to Nextcloud Office, and verify document editing with practical WOPI and proxy checks.
Temporarily raise coolwsd to debug, capture one failed open, and use the log sequence to separate WebSocket, WOPI, proxy, and container issues.