1263359 - Hyperlinked SVGZ (compressed SVG) as image does not work on local filesystem

Status: RESOLVED DUPLICATE of bug 52282

(Core :: SVG, defect)

Description

[Jeroen Hoek]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0
Build ID: 20160325004906

Steps to reproduce:

In HTML I link to an SVG image:

<img src="image.svgz" alt="Image" style="width: 60%; height: auto;"/>


Actual results:

The image is not shown when I open the webpage directly from the local filesystem without a webserver. When I upload the exact same webpage and the image to a webserver where the HTTP headers for SVGZ are configured, it does work.


Expected results:

Local SVG (uncompressed) works, SVGZ should work as well. The file extension .svgz indicates that it is a compressed SVG file, so Firefox should have enough information to guess that it can treat it as compressed SVG, despite the HTTP headers missing locally.

Comment 1

[Loic]

Could you attach a testcase to the bug report, so we could test locally ourself.

Comment 2

[Jeroen Hoek]

Attachment: Reproduction test case

This test-case contains an HTML file that links to two SVG files. One is plain SVG, the other is compressed SVGZ. Both files work when placed on-line and loaded from a webserver, but the compressed SVGZ fails when loaded from local filesystem.

Comment 3

[Jeroen Hoek]

Attachment: Screenshot of test case

In this screenshot you can see that the HTML file is loaded locally, and the compressed SVG is not loaded. No error is shown in console.