Does not load - https://www.4399.com/flash/198660_4.htm

wsxarcher commented 8 months ago

Describe the bug

Black screen after 4399 loading

VM244896:1  Uncaught TypeError: Cannot read properties of null (reading 'cloneNode')
    at <anonymous>:1:552
    at <anonymous>:1:945

Expected behavior

Play the game

Content Location

https://www.4399.com/flash/198660_4.htm

Affected platform

Browser's extension

Operating system

Window 11

Browser

Edge/Chrome 120

Additional information

This game is part of a bigger effort to support 4399.com games. There might be other issues with this website, from how it handles Flash checks and many CORS issues. Unfortunately, some games cannot be easily debugged on desktop because the swf download other swf or do requests while logged in.

If Ruffle is not detected try to reload the page multiple times because of the known race condition on the Flash check. To avoid refreshing try this Tampermonkey user script 一键下载 flash 游戏 (greasyfork.org)

To solve these issues refers to previous issues such as:

https://github.com/ruffle-rs/ruffle/issues/13943#issuecomment-1835074616 - Race condition discussion
https://github.com/ruffle-rs/ruffle/issues/14578#issuecomment-1873523939 - Ruffle detection issue
Edge/Chrome flag to temporarily disable CORS --disable-web-security or use https://chromewebstore.google.com/detail/allow-cors-access-control/lhobafahddgcelffkeicbaginigeejlf
Disable antidebugging with https://greasyfork.org/en/scripts/440060-anti-anti-debugger/code or Deactivate breakpoint
Disable second antidebugging manually
When running the downloaded .swf from desktop to debug, use --referer "https://www.4399.com", the correct --spoof-url (usually the page link) and --base which is the relative URL where other resources are fetched.

Dinnerbone commented 4 months ago

Works in desktop, assuming this is ExternalInterface stubbiness:

objectID should be set
It does lots of call("new function(){...}()") which we don't support

Dinnerbone commented 4 months ago

With #16505 this technically is progressed!

However, the JS on that site is doing something like this: if node.name != "EMBED" { recreate() }

Unfortunately, I don't think there's any way for us to spoof this. Our node name is ruffle-embed, because we polyfill the embed tags.

danielhjacobs commented 4 months ago

However, the JS on that site is doing something like this: if node.name != "EMBED" { recreate() }

I didn't test it, but this may be progressed by #16520

ruffle-rs / ruffle