Prerequisites

• I verified that this is not a filter issue
  • Filter issues MUST be reported at filter issue tracker
• This is not a support issue or a question
  • Support issues and questions are handled at /r/uBlockOrigin
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue
  • Your issue may already be reported.
• I tried to reproduce the issue when...
  • uBlock Origin is the only extension
  • uBlock Origin with default lists/settings
  • using a new, unmodified browser profile
• I am running the latest version of uBlock Origin
• I checked the documentation to understand that the issue I report is not a normal behavior

Description

When I set the "No Large Media" setting to 0KB almost all the images are blocked. Except when the image does not have a content-length header. This is known behaviour as described in #188. But, when someone, like me, inputs 0KB then we want to block all images. Even those without a content-length header. Because an image is always bigger than 0KB. uBlock Origin block even these images.

A specific URL where the issue occurs

Any site that has images that return no content-length header. I came across an image on this site: https://hexdocs.pm/pow/Pow.html.

Steps to Reproduce

1. Set "No Large Media" to 0KB
2. Visit a site with images that return no content-length headers. Like: https://hexdocs.pm/pow/Pow.html
3. Set images not blocked

Expected behavior:

All images blocked with a setting of 0KB

Actual behavior:

Images without content-length headers are not blocked

Your environment

• uBlock Origin version: 1.18.16
• Browser Name and version: Google Chrome, version 74.0.3729.108 (Official Build) (64-bit)
• Operating System and version: macOS Mojave, version 10.14.4