debugging - Firebug chokes with embedded YouTube video -


i'm trying embed youtube video in html page. here's code that's used embed sample video in page:

<iframe width="420" height="315" src="//www.youtube-nocookie.com/embed/dqw4w9wgxcq?rel=0" frameborder="0" allowfullscreen></iframe>

this code works fine in browsers. fails in firefox when have firebug running. errors occur are:

(1) "json.parse: unexpected non-whitespace character after json data"

and if hit f8 continue...

(2) "b undefined"

any idea might causing firebug choke? problem can reproduced minimalist html page contains nothing head , body, latter includes youtube embed code. fails when firebug loaded.

if don't know what's causing problem, alternative might disable debugging code originates on sites other own. example, perhaps disable debugging javascript code coming google.com allow debugger continue working on code? unfortunately, can't continue debugging page until strange issue resolved.

i had same issue. mac osx mavericks, firefox 28.0, firebug 1.12.8. restarting firefox did trick.


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