Firefox – How to view a page’s source when a javascript modal popup loads first

firefoxhtmljavascript

Scenario:

You go to a page. Before loading, a javascript modal popup loads. Firebug has yet to pick up on the source. However, this code is obviously living in your browser. How can you view the source, at this time?

EDIT: It appears that this popup is not javascript driven. I have disabled javascript and it still loads. However, it definitely looks like javascript… How would this occur without javscript?

Best Answer

Try prepending 'view-source:' to the URL;

view-source:http://www.google.co.uk

This works in Firefox and Chrome for me.

Related Solutions

Disable JavaScript Modal Popup Ads

The problem is although it appears as if it is a pop up, it is actually just HTML giving the impression it's a pop up. It is often called an overlay. Meaning on some sites, it will be junk (as per the screen shot), but other sites very much required (like a shopping basket preview screen).

Whilst it may block adverts it is possible it could block useful things, such as a discount pop up or cookie policy notifications, which until agreed won't let you proceed.

For FireFox and Chrome, there is a plugin called BehindTheOverlay which may give you what you want (similar to AdBlocker but for overlay). Chrome also has an extra plugin called overlay blocker. It is not perfect for many reasons and as already mentioned, do it at your own risk (as it may stop some sites working as intended).

Lastly, AdBlock plus may be able to help as it can be customised, see this forum for more detail https://adblockplus.org/forum/viewtopic.php?t=18595

You also have the option of disabling JavaScript. I know this is unlikely to suffice, but it's still an option.

Firefox – How to view a PDF in Firefox when the server specifies the wrong content type

Firefox has no content inspection code (e.g. the linux file command) to detect the actual content type and rely on the Content-Type header.

Workaround: `mozplugger` extension

See man 7 mozplugger:

  extensions
          This is a comma separated list of extensions that should be associated with this particular mime type. The  exten‐
          sions are only used when a web server does not report what type of file it is, or when loading files directly from
          disk.

Workaround: human interaction

Save the file and open it in the file explorer ;-)

Workaround: misconfiguration

An additional workaround is to hack mimeTypes.rdf and assign application/octet-stream to the same value as application/pdf.

I don't advice this workaround.