Closed
Bug 363899
Opened 18 years ago
Closed 18 years ago
getElementById returns null on empty (no text) pages
Categories
(Firefox :: General, defect)
Firefox
General
Tracking
()
RESOLVED
DUPLICATE
of bug 178258
People
(Reporter: admin, Unassigned)
Details
(Keywords: testcase)
Attachments
(1 file)
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1.05 KB,
application/octet-stream
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Details |
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; pl; rv:1.8.1) Gecko/20061010 Firefox/2.0 I have a file called test.html ----- <a href="http://liczniki.org/" style="border: 0px; padding: 0px; margin: 0px;" id="ministat01aliczniki"></a> <script type="text/javascript" src="http://127.0.0.90/liczniki/ms.php?l=liczniki" defer="defer"> </script> ----- now ms.php is a javascript applet that executes ------ [...] document.getElementById("ministat01aliczniki").appendChild(...) [...] ------ getElementById returns null if there is no visible text in test.html. To workaround it you must change test.html to something like ------ Some random text so getElementById will work... <a href="http://liczniki.org/" style="border: 0px; padding: 0px; margin: 0px;" id="ministat01aliczniki"></a> <script type="text/javascript" src="http://127.0.0.90/liczniki/ms.php?l=liczniki" defer="defer"> </script> -------- This is rather cosmetic issue than a bug, but web developers may have problems figuring out what is wrong with thier js. Reproducible: Always Steps to Reproduce: 0. All files placed on local apache server (dont know if it matters) 1. create test.html, copy from details as descripted (without ---- signs) 2. create ms.php, tell it to execute eg. alert(getElementById('ministat01aliczniki')); ->> run test.html ->> alert displays null pointer 3. enter some text at the beginning of test.html ->> run test.html --> alert displays object Actual Results: getElementById behaviour is inconsistent depending of webpage content Expected Results: getElementById should return object instead of null when web page is empty (no visible text) Standard install
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Comment 1•18 years ago
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Does it work if you remove defer="defer" from the script start tag?
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Updated•18 years ago
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Summary: Javascript getElementByID wont work on empty (no text) pages → getElementById returns null on empty (no text) pages
(In reply to comment #1) > Does it work if you remove defer="defer" from the script start tag? > no it doesnt work. please look at the attachment for examples
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Comment 4•18 years ago
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I see what you mean. This is the same underlying problem as bug 178258, which is that <script> is a valid <head> element but <a> isn't and is thus implicitly moved into a auto-created <body>. You can see this in DOM Inspector (CTRL+SHIFT+I). I suggest you add an explicit <body> before the <a>. That should work in all browsers. *** This bug has been marked as a duplicate of 178258 ***
Status: UNCONFIRMED → RESOLVED
Closed: 18 years ago
Keywords: testcase
OS: Windows XP → All
Hardware: PC → All
Resolution: --- → DUPLICATE
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Description
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