Participant

Question

Blank page displaying : Flash player 23.0.0.185 IE11 & FF 49.0.1

Forum|Forum|9 years ago
October 25, 2016
3 replies
3120 views

Hi,

Local .html files generated with flipcreator, gives a blank page with this version of flash player with both navigators IE11 and Firefox (Windows 7 64 bits), while working with flash player 19.0.0.245 on other computers (Windows 2k8 r2).

What can i do to solve this problem ?

Thanks for helping.

Best regards.

blank page

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servicei33928228Author

Participant

Jeromie,

Actually, it's this solutions i've tried, unsuccessfully, only with this computer. It's works for the others (2).

Could this problem come from another Chrome plugin ?

I launched Chrome in Incognito mode but il didn't display the local page.

jeromiec83223024

Inspiring

In most instances, content providers use JavaScript to add Flash elements to the page (a shameful legacy of patent trolling in the early 2000s). Plug-ins like ad-blockers, noScript, anti-tracking plugins, etc, are very common sources of self-inflicted problems.

On the stubborn machine, I would reboot it, just to force Chrome to full exit and re-read all of the configuration files. If that doesn't work, you might just do an uninstall/reinstall of Chrome. If the user is signed in to a Google account in the browser, they can save all of the state data to the cloud so that any state loss in the browser would be minimal.

servicei33928228Author

Participant

Hi,

The only solution which works is the one with mms.cfg files with IE, FF and Chrome.

However, this solution for system administrators doesn't work with one PC (Chrome 54.0.2840.71 as the others) .

Indeed Chrome (still)) says : "this site is unsecure" a with blank page.

Any idea ?

Thx.

jeromiec83223024

Inspiring

Yes, Chrome is a different beast. In Chrome's integration, Flash Player gets mediated access to the filesystem, and doesn't have access to the configuration files shared by all other browsers on the system. It's analogous to running in a chroot jail.

I can't find any official documentation, so there are no guarantees that this information will be correct forever, but here's what works today:

Mac: ~/Library/Application Support/Google/Chrome/Default/Pepper Data/Shockwave Flash/System

Windows: %USERNAME%/AppData/Local/Google/Chrome/User Data/Default/Pepper Data/Shockwave Flash/System

WinXP: %USERNAME%/Local Settings/Application Data/Google/Chrome SxS/User Data/Default/Pepper Data/Shockwave Flash/System

Linux: /home/.config/google-chrome/Default/Pepper Data/Shockwave Flash/System/

You may need to create some of those directories. They're not guaranteed to exist.

Oh, and Edge doesn't support loading files from the local filesystem at all, so this workflow never would have worked there. It should just spawn an IE instance at the point that you try to drag a local .html file into the browser...

jeromiec83223024

Inspiring

Disabling local-with-filesystem access in Flash Player by default

Beginning with Flash Player 23, local-with-network permissions will now be applied to all local SWF content, regardless of the preference chosen at compile time.

Background:
When playing Flash (SWF) content from local filesystem, developers have historically been able to configure content to exclusively read from the filesystem, or communicate to the network. When this functionality was introduced over a decade ago, it enabled an interesting array of use-cases ranging from simple games to interactive kiosks. In context of modern web security, we believe that it is time to retire local filesystem functionality in the browser plugin. At the same time, Adobe AIR has been established as a robust, mature solution for delivering ActionScript-based content as a standalone application.

Vast majority of Flash Player users and content will be unaffected by this change. This change only impacts Flash content played from the local filesystem, using the browser. Flash content hosted on the internet and local webservers, as well as the Standalone Flash Player remains unaffected.If you are a user who requires this functionality, these files can be added to the list of Trusted Locations in Flash Player.

Workarounds for Legacy Content:
We highly recommend that you only circumvent these controls to enable content from sources that they trust.

For Individuals:
For Internet Explorer, Edge, Firefox, Opera and Safari:
On the affected system, go to the Flash Player Settings Manager:
• Mac: System Preferences > Flash Player
• Windows: Control Panel > Flash Player
Select the Advanced tab
In the Developer Tools section, click the Trusted Location Settings button
Click the "Add..." button and add relevant files and folders to the list

For Google Chrome (and other PPAPI browsers):
Navigate to the Settings Manager page
Choose Edit Locations > Add Locations from the popup list
In the text field that appears, type or paste the file/folder path that you'd like to trust
Click the "Confirm" button
Note: Please be aware that the "Browse for files" and "Browse for folder" buttons do not function properly. You must manually type or copy/paste your path into the text field above the buttons to add the file or folder to the trusted list.

For System Administrators:
The legacy behavior can be restored by applying the EnableInsecureLocalWithFileSystem=1 flag to mms.cfg.

R

rickyhc

Inspiring

Jeromie said " Flash content hosted on the internet and local webservers, as well as the Standalone Flash Player remains unaffected."

I really wish that was true. Flash programs built for Flash Projector presentations are NOT unaffected. Local files won't load with the windows or mac versions. On mac local files won't load even when they are in the same app package.

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