html - Firebug indicates two requests in an SVG with xml:base attribute -


i have working svg drawing in <iframe> <image> elements. drawing located in 1 location; images relative another. here html:

<iframe src="/howl/svg/id/482?width=535&amp;height=325"></iframe>

here svg source <iframe>:

<svg xml:base="/howl/">    <svg width="535" height="325" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">      <g id="svg_1">         <image xlink:href="file/id/472" id="svg_4" height="516" width="631" y="-95.5" x="-48"/>      </g>    </svg> </svg>

everything displays properly. however, according firebug, i'm getting 2 requests:

  1. http://localhost:8086/howl/file/id/472 - correct , loads properly.
  2. http://localhost:8086/howl/svg/id/file/id/472 - incorrect.

interestingly, incorrect request not return 404, churns indefinitely in firebug mysterious spinner. unable click-inspect request. if type url directly browser:

http://localhost:8086/howl/svg/id/file/id/472

i 404 not found, expect, not firebug reports.

is problem svg? firebug error? second request being made?

thanks!

updated: i've included entire source code.

i seeing these requests, it's firefox does. so, doesn't seem firebug problem (other firefox monitoring tools show same).

i don't have experience svg, if replace the:

<svg xml:base="/howl/">

with

<svg>

i see 2 requests. xml:base for?


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